Om alle delers van het getal 68.000.000.250 te vinden:
- 1. Ontbind het getal in priemfactoren.
- Ontdek hoe je kunt uitrekenen hoeveel delers een getal heeft, zonder de delers daadwerkelijk te berekenen.
- 2. Vermenigvuldig deze priemfactoren in al hun unieke combinaties, die verschillende resultaten opleveren.
1. Voer de ontbinding van het getal 68.000.000.250 in de priemfactoren:
Het ontbinden in priemfactoren van een getal: de priemgetallen vinden die zich vermenigvuldigen om dat getal te maken.
68.000.000.250 = 2 × 3 × 53 × 7 × 13 × 23 × 43.319
68.000.000.250 is geen priemgetal maar een samengesteld getal.
- De natuurlijke getallen die alleen deelbaar zijn door 1 en zichzelf worden priemgetallen genoemd (deelbare getallen = getallen die zonder rest door andere getallen worden gedeeld). Een priemgetal heeft precies twee delers: 1 en het getal zelf.
- Voorbeelden van priemgetallen: 2 (delers 1, 2), 3 (delers 1, 3), 5 (delers 1, 5), 7 (delers 1, 7), 11 (delers 1, 11), 13 (delers 1, 13), ...
- Een samengesteld getal is een natuurlijk getal dat ten minste één andere deler heeft dan 1 en zichzelf. Het is dus noch een priemgetal, noch 1.
- Voorbeelden van samengestelde getallen: 4 (het heeft 3 delers: 1, 2, 4), 6 (het heeft 4 delers: 1, 2, 3, 6), 8 (het heeft 4 delers: 1, 2, 4, 8), 9 (het heeft 3 delers: 1, 3, 9), 10 (het heeft 4 delers: 1, 2, 5, 10), 12 (het heeft 6 delers: 1, 2, 3, 4, 6, 12), ...
Hoe tel je het aantal delers van een getal?
Zonder de delers daadwerkelijk te berekenen
- Als een getal N wordt ontbonden in priemfactoren als:
N = am × bk × cz
waarbij a, b, c de priemfactoren zijn; m, k, z hun exponenten, natuurlijke getallen, .... - ...
- Dan kan het aantal delers van het getal N op deze manier worden berekend:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In ons geval wordt het aantal delers berekend als:
- n = (1 + 1) × (1 + 1) × (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 4 × 2 × 2 × 2 × 2 = 256
Maar om de delers daadwerkelijk te berekenen, zie hieronder...
2. Vermenigvuldig de priemfactoren van het getal 68.000.000.250
- Vermenigvuldig de priemfactoren die betrokken zijn bij het ontbinden in priemfactoren van het getal, in al hun unieke combinaties, die verschillende resultaten opleveren.
- Overweeg ook de exponenten van deze priemfactoren.
- Voeg ook 1 toe aan de lijst met delers. Alle getallen zijn deelbaar door 1.
Alle delers staan hieronder vermeld - in oplopende volgorde
De lijst met delers:
Getallen anders dan 1 die geen priemfactoren zijn, zijn de samengestelde delers.
noch priem noch samengesteld =
1
priemfactor =
2
priemfactor =
3
priemfactor =
5
samengestelde deler = 2 × 3 =
6
priemfactor =
7
samengestelde deler = 2 × 5 =
10
priemfactor =
13
samengestelde deler = 2 × 7 =
14
samengestelde deler = 3 × 5 =
15
samengestelde deler = 3 × 7 =
21
priemfactor =
23
samengestelde deler = 5
2 =
25
samengestelde deler = 2 × 13 =
26
samengestelde deler = 2 × 3 × 5 =
30
samengestelde deler = 5 × 7 =
35
samengestelde deler = 3 × 13 =
39
samengestelde deler = 2 × 3 × 7 =
42
samengestelde deler = 2 × 23 =
46
samengestelde deler = 2 × 5
2 =
50
samengestelde deler = 5 × 13 =
65
samengestelde deler = 3 × 23 =
69
samengestelde deler = 2 × 5 × 7 =
70
samengestelde deler = 3 × 5
2 =
75
samengestelde deler = 2 × 3 × 13 =
78
samengestelde deler = 7 × 13 =
91
samengestelde deler = 3 × 5 × 7 =
105
samengestelde deler = 5 × 23 =
115
samengestelde deler = 5
3 =
125
samengestelde deler = 2 × 5 × 13 =
130
samengestelde deler = 2 × 3 × 23 =
138
samengestelde deler = 2 × 3 × 5
2 =
150
samengestelde deler = 7 × 23 =
161
samengestelde deler = 5
2 × 7 =
175
samengestelde deler = 2 × 7 × 13 =
182
samengestelde deler = 3 × 5 × 13 =
195
samengestelde deler = 2 × 3 × 5 × 7 =
210
samengestelde deler = 2 × 5 × 23 =
230
samengestelde deler = 2 × 5
3 =
250
samengestelde deler = 3 × 7 × 13 =
273
samengestelde deler = 13 × 23 =
299
samengestelde deler = 2 × 7 × 23 =
322
samengestelde deler = 5
2 × 13 =
325
samengestelde deler = 3 × 5 × 23 =
345
samengestelde deler = 2 × 5
2 × 7 =
350
samengestelde deler = 3 × 5
3 =
375
samengestelde deler = 2 × 3 × 5 × 13 =
390
samengestelde deler = 5 × 7 × 13 =
455
samengestelde deler = 3 × 7 × 23 =
483
samengestelde deler = 3 × 5
2 × 7 =
525
samengestelde deler = 2 × 3 × 7 × 13 =
546
samengestelde deler = 5
2 × 23 =
575
samengestelde deler = 2 × 13 × 23 =
598
samengestelde deler = 2 × 5
2 × 13 =
650
samengestelde deler = 2 × 3 × 5 × 23 =
690
samengestelde deler = 2 × 3 × 5
3 =
750
samengestelde deler = 5 × 7 × 23 =
805
samengestelde deler = 5
3 × 7 =
875
samengestelde deler = 3 × 13 × 23 =
897
samengestelde deler = 2 × 5 × 7 × 13 =
910
samengestelde deler = 2 × 3 × 7 × 23 =
966
samengestelde deler = 3 × 5
2 × 13 =
975
samengestelde deler = 2 × 3 × 5
2 × 7 =
1.050
samengestelde deler = 2 × 5
2 × 23 =
1.150
samengestelde deler = 3 × 5 × 7 × 13 =
1.365
samengestelde deler = 5 × 13 × 23 =
1.495
samengestelde deler = 2 × 5 × 7 × 23 =
1.610
samengestelde deler = 5
3 × 13 =
1.625
samengestelde deler = 3 × 5
2 × 23 =
1.725
samengestelde deler = 2 × 5
3 × 7 =
1.750
samengestelde deler = 2 × 3 × 13 × 23 =
1.794
samengestelde deler = 2 × 3 × 5
2 × 13 =
1.950
samengestelde deler = 7 × 13 × 23 =
2.093
samengestelde deler = 5
2 × 7 × 13 =
2.275
samengestelde deler = 3 × 5 × 7 × 23 =
2.415
samengestelde deler = 3 × 5
3 × 7 =
2.625
samengestelde deler = 2 × 3 × 5 × 7 × 13 =
2.730
samengestelde deler = 5
3 × 23 =
2.875
samengestelde deler = 2 × 5 × 13 × 23 =
2.990
samengestelde deler = 2 × 5
3 × 13 =
3.250
samengestelde deler = 2 × 3 × 5
2 × 23 =
3.450
samengestelde deler = 5
2 × 7 × 23 =
4.025
samengestelde deler = 2 × 7 × 13 × 23 =
4.186
samengestelde deler = 3 × 5 × 13 × 23 =
4.485
samengestelde deler = 2 × 5
2 × 7 × 13 =
4.550
samengestelde deler = 2 × 3 × 5 × 7 × 23 =
4.830
samengestelde deler = 3 × 5
3 × 13 =
4.875
samengestelde deler = 2 × 3 × 5
3 × 7 =
5.250
samengestelde deler = 2 × 5
3 × 23 =
5.750
samengestelde deler = 3 × 7 × 13 × 23 =
6.279
samengestelde deler = 3 × 5
2 × 7 × 13 =
6.825
samengestelde deler = 5
2 × 13 × 23 =
7.475
samengestelde deler = 2 × 5
2 × 7 × 23 =
8.050
samengestelde deler = 3 × 5
3 × 23 =
8.625
samengestelde deler = 2 × 3 × 5 × 13 × 23 =
8.970
samengestelde deler = 2 × 3 × 5
3 × 13 =
9.750
samengestelde deler = 5 × 7 × 13 × 23 =
10.465
samengestelde deler = 5
3 × 7 × 13 =
11.375
samengestelde deler = 3 × 5
2 × 7 × 23 =
12.075
samengestelde deler = 2 × 3 × 7 × 13 × 23 =
12.558
samengestelde deler = 2 × 3 × 5
2 × 7 × 13 =
13.650
samengestelde deler = 2 × 5
2 × 13 × 23 =
14.950
samengestelde deler = 2 × 3 × 5
3 × 23 =
17.250
samengestelde deler = 5
3 × 7 × 23 =
20.125
samengestelde deler = 2 × 5 × 7 × 13 × 23 =
20.930
samengestelde deler = 3 × 5
2 × 13 × 23 =
22.425
samengestelde deler = 2 × 5
3 × 7 × 13 =
22.750
samengestelde deler = 2 × 3 × 5
2 × 7 × 23 =
24.150
samengestelde deler = 3 × 5 × 7 × 13 × 23 =
31.395
samengestelde deler = 3 × 5
3 × 7 × 13 =
34.125
samengestelde deler = 5
3 × 13 × 23 =
37.375
samengestelde deler = 2 × 5
3 × 7 × 23 =
40.250
priemfactor =
43.319
samengestelde deler = 2 × 3 × 5
2 × 13 × 23 =
44.850
samengestelde deler = 5
2 × 7 × 13 × 23 =
52.325
samengestelde deler = 3 × 5
3 × 7 × 23 =
60.375
samengestelde deler = 2 × 3 × 5 × 7 × 13 × 23 =
62.790
samengestelde deler = 2 × 3 × 5
3 × 7 × 13 =
68.250
samengestelde deler = 2 × 5
3 × 13 × 23 =
74.750
samengestelde deler = 2 × 43.319 =
86.638
samengestelde deler = 2 × 5
2 × 7 × 13 × 23 =
104.650
samengestelde deler = 3 × 5
3 × 13 × 23 =
112.125
samengestelde deler = 2 × 3 × 5
3 × 7 × 23 =
120.750
samengestelde deler = 3 × 43.319 =
129.957
samengestelde deler = 3 × 5
2 × 7 × 13 × 23 =
156.975
samengestelde deler = 5 × 43.319 =
216.595
samengestelde deler = 2 × 3 × 5
3 × 13 × 23 =
224.250
samengestelde deler = 2 × 3 × 43.319 =
259.914
Deze lijst gaat hieronder verder...
... Deze lijst gaat verder van bovenaf
samengestelde deler = 5
3 × 7 × 13 × 23 =
261.625
samengestelde deler = 7 × 43.319 =
303.233
samengestelde deler = 2 × 3 × 5
2 × 7 × 13 × 23 =
313.950
samengestelde deler = 2 × 5 × 43.319 =
433.190
samengestelde deler = 2 × 5
3 × 7 × 13 × 23 =
523.250
samengestelde deler = 13 × 43.319 =
563.147
samengestelde deler = 2 × 7 × 43.319 =
606.466
samengestelde deler = 3 × 5 × 43.319 =
649.785
samengestelde deler = 3 × 5
3 × 7 × 13 × 23 =
784.875
samengestelde deler = 3 × 7 × 43.319 =
909.699
samengestelde deler = 23 × 43.319 =
996.337
samengestelde deler = 5
2 × 43.319 =
1.082.975
samengestelde deler = 2 × 13 × 43.319 =
1.126.294
samengestelde deler = 2 × 3 × 5 × 43.319 =
1.299.570
samengestelde deler = 5 × 7 × 43.319 =
1.516.165
samengestelde deler = 2 × 3 × 5
3 × 7 × 13 × 23 =
1.569.750
samengestelde deler = 3 × 13 × 43.319 =
1.689.441
samengestelde deler = 2 × 3 × 7 × 43.319 =
1.819.398
samengestelde deler = 2 × 23 × 43.319 =
1.992.674
samengestelde deler = 2 × 5
2 × 43.319 =
2.165.950
samengestelde deler = 5 × 13 × 43.319 =
2.815.735
samengestelde deler = 3 × 23 × 43.319 =
2.989.011
samengestelde deler = 2 × 5 × 7 × 43.319 =
3.032.330
samengestelde deler = 3 × 5
2 × 43.319 =
3.248.925
samengestelde deler = 2 × 3 × 13 × 43.319 =
3.378.882
samengestelde deler = 7 × 13 × 43.319 =
3.942.029
samengestelde deler = 3 × 5 × 7 × 43.319 =
4.548.495
samengestelde deler = 5 × 23 × 43.319 =
4.981.685
samengestelde deler = 5
3 × 43.319 =
5.414.875
samengestelde deler = 2 × 5 × 13 × 43.319 =
5.631.470
samengestelde deler = 2 × 3 × 23 × 43.319 =
5.978.022
samengestelde deler = 2 × 3 × 5
2 × 43.319 =
6.497.850
samengestelde deler = 7 × 23 × 43.319 =
6.974.359
samengestelde deler = 5
2 × 7 × 43.319 =
7.580.825
samengestelde deler = 2 × 7 × 13 × 43.319 =
7.884.058
samengestelde deler = 3 × 5 × 13 × 43.319 =
8.447.205
samengestelde deler = 2 × 3 × 5 × 7 × 43.319 =
9.096.990
samengestelde deler = 2 × 5 × 23 × 43.319 =
9.963.370
samengestelde deler = 2 × 5
3 × 43.319 =
10.829.750
samengestelde deler = 3 × 7 × 13 × 43.319 =
11.826.087
samengestelde deler = 13 × 23 × 43.319 =
12.952.381
samengestelde deler = 2 × 7 × 23 × 43.319 =
13.948.718
samengestelde deler = 5
2 × 13 × 43.319 =
14.078.675
samengestelde deler = 3 × 5 × 23 × 43.319 =
14.945.055
samengestelde deler = 2 × 5
2 × 7 × 43.319 =
15.161.650
samengestelde deler = 3 × 5
3 × 43.319 =
16.244.625
samengestelde deler = 2 × 3 × 5 × 13 × 43.319 =
16.894.410
samengestelde deler = 5 × 7 × 13 × 43.319 =
19.710.145
samengestelde deler = 3 × 7 × 23 × 43.319 =
20.923.077
samengestelde deler = 3 × 5
2 × 7 × 43.319 =
22.742.475
samengestelde deler = 2 × 3 × 7 × 13 × 43.319 =
23.652.174
samengestelde deler = 5
2 × 23 × 43.319 =
24.908.425
samengestelde deler = 2 × 13 × 23 × 43.319 =
25.904.762
samengestelde deler = 2 × 5
2 × 13 × 43.319 =
28.157.350
samengestelde deler = 2 × 3 × 5 × 23 × 43.319 =
29.890.110
samengestelde deler = 2 × 3 × 5
3 × 43.319 =
32.489.250
samengestelde deler = 5 × 7 × 23 × 43.319 =
34.871.795
samengestelde deler = 5
3 × 7 × 43.319 =
37.904.125
samengestelde deler = 3 × 13 × 23 × 43.319 =
38.857.143
samengestelde deler = 2 × 5 × 7 × 13 × 43.319 =
39.420.290
samengestelde deler = 2 × 3 × 7 × 23 × 43.319 =
41.846.154
samengestelde deler = 3 × 5
2 × 13 × 43.319 =
42.236.025
samengestelde deler = 2 × 3 × 5
2 × 7 × 43.319 =
45.484.950
samengestelde deler = 2 × 5
2 × 23 × 43.319 =
49.816.850
samengestelde deler = 3 × 5 × 7 × 13 × 43.319 =
59.130.435
samengestelde deler = 5 × 13 × 23 × 43.319 =
64.761.905
samengestelde deler = 2 × 5 × 7 × 23 × 43.319 =
69.743.590
samengestelde deler = 5
3 × 13 × 43.319 =
70.393.375
samengestelde deler = 3 × 5
2 × 23 × 43.319 =
74.725.275
samengestelde deler = 2 × 5
3 × 7 × 43.319 =
75.808.250
samengestelde deler = 2 × 3 × 13 × 23 × 43.319 =
77.714.286
samengestelde deler = 2 × 3 × 5
2 × 13 × 43.319 =
84.472.050
samengestelde deler = 7 × 13 × 23 × 43.319 =
90.666.667
samengestelde deler = 5
2 × 7 × 13 × 43.319 =
98.550.725
samengestelde deler = 3 × 5 × 7 × 23 × 43.319 =
104.615.385
samengestelde deler = 3 × 5
3 × 7 × 43.319 =
113.712.375
samengestelde deler = 2 × 3 × 5 × 7 × 13 × 43.319 =
118.260.870
samengestelde deler = 5
3 × 23 × 43.319 =
124.542.125
samengestelde deler = 2 × 5 × 13 × 23 × 43.319 =
129.523.810
samengestelde deler = 2 × 5
3 × 13 × 43.319 =
140.786.750
samengestelde deler = 2 × 3 × 5
2 × 23 × 43.319 =
149.450.550
samengestelde deler = 5
2 × 7 × 23 × 43.319 =
174.358.975
samengestelde deler = 2 × 7 × 13 × 23 × 43.319 =
181.333.334
samengestelde deler = 3 × 5 × 13 × 23 × 43.319 =
194.285.715
samengestelde deler = 2 × 5
2 × 7 × 13 × 43.319 =
197.101.450
samengestelde deler = 2 × 3 × 5 × 7 × 23 × 43.319 =
209.230.770
samengestelde deler = 3 × 5
3 × 13 × 43.319 =
211.180.125
samengestelde deler = 2 × 3 × 5
3 × 7 × 43.319 =
227.424.750
samengestelde deler = 2 × 5
3 × 23 × 43.319 =
249.084.250
samengestelde deler = 3 × 7 × 13 × 23 × 43.319 =
272.000.001
samengestelde deler = 3 × 5
2 × 7 × 13 × 43.319 =
295.652.175
samengestelde deler = 5
2 × 13 × 23 × 43.319 =
323.809.525
samengestelde deler = 2 × 5
2 × 7 × 23 × 43.319 =
348.717.950
samengestelde deler = 3 × 5
3 × 23 × 43.319 =
373.626.375
samengestelde deler = 2 × 3 × 5 × 13 × 23 × 43.319 =
388.571.430
samengestelde deler = 2 × 3 × 5
3 × 13 × 43.319 =
422.360.250
samengestelde deler = 5 × 7 × 13 × 23 × 43.319 =
453.333.335
samengestelde deler = 5
3 × 7 × 13 × 43.319 =
492.753.625
samengestelde deler = 3 × 5
2 × 7 × 23 × 43.319 =
523.076.925
samengestelde deler = 2 × 3 × 7 × 13 × 23 × 43.319 =
544.000.002
samengestelde deler = 2 × 3 × 5
2 × 7 × 13 × 43.319 =
591.304.350
samengestelde deler = 2 × 5
2 × 13 × 23 × 43.319 =
647.619.050
samengestelde deler = 2 × 3 × 5
3 × 23 × 43.319 =
747.252.750
samengestelde deler = 5
3 × 7 × 23 × 43.319 =
871.794.875
samengestelde deler = 2 × 5 × 7 × 13 × 23 × 43.319 =
906.666.670
samengestelde deler = 3 × 5
2 × 13 × 23 × 43.319 =
971.428.575
samengestelde deler = 2 × 5
3 × 7 × 13 × 43.319 =
985.507.250
samengestelde deler = 2 × 3 × 5
2 × 7 × 23 × 43.319 =
1.046.153.850
samengestelde deler = 3 × 5 × 7 × 13 × 23 × 43.319 =
1.360.000.005
samengestelde deler = 3 × 5
3 × 7 × 13 × 43.319 =
1.478.260.875
samengestelde deler = 5
3 × 13 × 23 × 43.319 =
1.619.047.625
samengestelde deler = 2 × 5
3 × 7 × 23 × 43.319 =
1.743.589.750
samengestelde deler = 2 × 3 × 5
2 × 13 × 23 × 43.319 =
1.942.857.150
samengestelde deler = 5
2 × 7 × 13 × 23 × 43.319 =
2.266.666.675
samengestelde deler = 3 × 5
3 × 7 × 23 × 43.319 =
2.615.384.625
samengestelde deler = 2 × 3 × 5 × 7 × 13 × 23 × 43.319 =
2.720.000.010
samengestelde deler = 2 × 3 × 5
3 × 7 × 13 × 43.319 =
2.956.521.750
samengestelde deler = 2 × 5
3 × 13 × 23 × 43.319 =
3.238.095.250
samengestelde deler = 2 × 5
2 × 7 × 13 × 23 × 43.319 =
4.533.333.350
samengestelde deler = 3 × 5
3 × 13 × 23 × 43.319 =
4.857.142.875
samengestelde deler = 2 × 3 × 5
3 × 7 × 23 × 43.319 =
5.230.769.250
samengestelde deler = 3 × 5
2 × 7 × 13 × 23 × 43.319 =
6.800.000.025
samengestelde deler = 2 × 3 × 5
3 × 13 × 23 × 43.319 =
9.714.285.750
samengestelde deler = 5
3 × 7 × 13 × 23 × 43.319 =
11.333.333.375
samengestelde deler = 2 × 3 × 5
2 × 7 × 13 × 23 × 43.319 =
13.600.000.050
samengestelde deler = 2 × 5
3 × 7 × 13 × 23 × 43.319 =
22.666.666.750
samengestelde deler = 3 × 5
3 × 7 × 13 × 23 × 43.319 =
34.000.000.125
samengestelde deler = 2 × 3 × 5
3 × 7 × 13 × 23 × 43.319 =
68.000.000.250
256 delers