To find all the divisors of the number 1,002,540:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 1,002,540:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,002,540 = 22 × 3 × 5 × 72 × 11 × 31
1,002,540 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (2 + 1) × (1 + 1) × (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 3 × 2 × 2 = 144
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,002,540
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 3 × 5 =
15
composite factor = 2
2 × 5 =
20
composite factor = 3 × 7 =
21
composite factor = 2 × 11 =
22
composite factor = 2
2 × 7 =
28
composite factor = 2 × 3 × 5 =
30
prime factor =
31
composite factor = 3 × 11 =
33
composite factor = 5 × 7 =
35
composite factor = 2 × 3 × 7 =
42
composite factor = 2
2 × 11 =
44
composite factor = 7
2 =
49
composite factor = 5 × 11 =
55
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 31 =
62
composite factor = 2 × 3 × 11 =
66
composite factor = 2 × 5 × 7 =
70
composite factor = 7 × 11 =
77
composite factor = 2
2 × 3 × 7 =
84
composite factor = 3 × 31 =
93
composite factor = 2 × 7
2 =
98
composite factor = 3 × 5 × 7 =
105
composite factor = 2 × 5 × 11 =
110
composite factor = 2
2 × 31 =
124
composite factor = 2
2 × 3 × 11 =
132
composite factor = 2
2 × 5 × 7 =
140
composite factor = 3 × 7
2 =
147
composite factor = 2 × 7 × 11 =
154
composite factor = 5 × 31 =
155
composite factor = 3 × 5 × 11 =
165
composite factor = 2 × 3 × 31 =
186
composite factor = 2
2 × 7
2 =
196
composite factor = 2 × 3 × 5 × 7 =
210
composite factor = 7 × 31 =
217
composite factor = 2
2 × 5 × 11 =
220
composite factor = 3 × 7 × 11 =
231
composite factor = 5 × 7
2 =
245
composite factor = 2 × 3 × 7
2 =
294
composite factor = 2
2 × 7 × 11 =
308
composite factor = 2 × 5 × 31 =
310
composite factor = 2 × 3 × 5 × 11 =
330
composite factor = 11 × 31 =
341
composite factor = 2
2 × 3 × 31 =
372
composite factor = 5 × 7 × 11 =
385
composite factor = 2
2 × 3 × 5 × 7 =
420
composite factor = 2 × 7 × 31 =
434
composite factor = 2 × 3 × 7 × 11 =
462
composite factor = 3 × 5 × 31 =
465
composite factor = 2 × 5 × 7
2 =
490
composite factor = 7
2 × 11 =
539
composite factor = 2
2 × 3 × 7
2 =
588
composite factor = 2
2 × 5 × 31 =
620
composite factor = 3 × 7 × 31 =
651
composite factor = 2
2 × 3 × 5 × 11 =
660
composite factor = 2 × 11 × 31 =
682
composite factor = 3 × 5 × 7
2 =
735
composite factor = 2 × 5 × 7 × 11 =
770
composite factor = 2
2 × 7 × 31 =
868
composite factor = 2
2 × 3 × 7 × 11 =
924
composite factor = 2 × 3 × 5 × 31 =
930
composite factor = 2
2 × 5 × 7
2 =
980
This list continues below...
... This list continues from above
composite factor = 3 × 11 × 31 =
1,023
composite factor = 2 × 7
2 × 11 =
1,078
composite factor = 5 × 7 × 31 =
1,085
composite factor = 3 × 5 × 7 × 11 =
1,155
composite factor = 2 × 3 × 7 × 31 =
1,302
composite factor = 2
2 × 11 × 31 =
1,364
composite factor = 2 × 3 × 5 × 7
2 =
1,470
composite factor = 7
2 × 31 =
1,519
composite factor = 2
2 × 5 × 7 × 11 =
1,540
composite factor = 3 × 7
2 × 11 =
1,617
composite factor = 5 × 11 × 31 =
1,705
composite factor = 2
2 × 3 × 5 × 31 =
1,860
composite factor = 2 × 3 × 11 × 31 =
2,046
composite factor = 2
2 × 7
2 × 11 =
2,156
composite factor = 2 × 5 × 7 × 31 =
2,170
composite factor = 2 × 3 × 5 × 7 × 11 =
2,310
composite factor = 7 × 11 × 31 =
2,387
composite factor = 2
2 × 3 × 7 × 31 =
2,604
composite factor = 5 × 7
2 × 11 =
2,695
composite factor = 2
2 × 3 × 5 × 7
2 =
2,940
composite factor = 2 × 7
2 × 31 =
3,038
composite factor = 2 × 3 × 7
2 × 11 =
3,234
composite factor = 3 × 5 × 7 × 31 =
3,255
composite factor = 2 × 5 × 11 × 31 =
3,410
composite factor = 2
2 × 3 × 11 × 31 =
4,092
composite factor = 2
2 × 5 × 7 × 31 =
4,340
composite factor = 3 × 7
2 × 31 =
4,557
composite factor = 2
2 × 3 × 5 × 7 × 11 =
4,620
composite factor = 2 × 7 × 11 × 31 =
4,774
composite factor = 3 × 5 × 11 × 31 =
5,115
composite factor = 2 × 5 × 7
2 × 11 =
5,390
composite factor = 2
2 × 7
2 × 31 =
6,076
composite factor = 2
2 × 3 × 7
2 × 11 =
6,468
composite factor = 2 × 3 × 5 × 7 × 31 =
6,510
composite factor = 2
2 × 5 × 11 × 31 =
6,820
composite factor = 3 × 7 × 11 × 31 =
7,161
composite factor = 5 × 7
2 × 31 =
7,595
composite factor = 3 × 5 × 7
2 × 11 =
8,085
composite factor = 2 × 3 × 7
2 × 31 =
9,114
composite factor = 2
2 × 7 × 11 × 31 =
9,548
composite factor = 2 × 3 × 5 × 11 × 31 =
10,230
composite factor = 2
2 × 5 × 7
2 × 11 =
10,780
composite factor = 5 × 7 × 11 × 31 =
11,935
composite factor = 2
2 × 3 × 5 × 7 × 31 =
13,020
composite factor = 2 × 3 × 7 × 11 × 31 =
14,322
composite factor = 2 × 5 × 7
2 × 31 =
15,190
composite factor = 2 × 3 × 5 × 7
2 × 11 =
16,170
composite factor = 7
2 × 11 × 31 =
16,709
composite factor = 2
2 × 3 × 7
2 × 31 =
18,228
composite factor = 2
2 × 3 × 5 × 11 × 31 =
20,460
composite factor = 3 × 5 × 7
2 × 31 =
22,785
composite factor = 2 × 5 × 7 × 11 × 31 =
23,870
composite factor = 2
2 × 3 × 7 × 11 × 31 =
28,644
composite factor = 2
2 × 5 × 7
2 × 31 =
30,380
composite factor = 2
2 × 3 × 5 × 7
2 × 11 =
32,340
composite factor = 2 × 7
2 × 11 × 31 =
33,418
composite factor = 3 × 5 × 7 × 11 × 31 =
35,805
composite factor = 2 × 3 × 5 × 7
2 × 31 =
45,570
composite factor = 2
2 × 5 × 7 × 11 × 31 =
47,740
composite factor = 3 × 7
2 × 11 × 31 =
50,127
composite factor = 2
2 × 7
2 × 11 × 31 =
66,836
composite factor = 2 × 3 × 5 × 7 × 11 × 31 =
71,610
composite factor = 5 × 7
2 × 11 × 31 =
83,545
composite factor = 2
2 × 3 × 5 × 7
2 × 31 =
91,140
composite factor = 2 × 3 × 7
2 × 11 × 31 =
100,254
composite factor = 2
2 × 3 × 5 × 7 × 11 × 31 =
143,220
composite factor = 2 × 5 × 7
2 × 11 × 31 =
167,090
composite factor = 2
2 × 3 × 7
2 × 11 × 31 =
200,508
composite factor = 3 × 5 × 7
2 × 11 × 31 =
250,635
composite factor = 2
2 × 5 × 7
2 × 11 × 31 =
334,180
composite factor = 2 × 3 × 5 × 7
2 × 11 × 31 =
501,270
composite factor = 2
2 × 3 × 5 × 7
2 × 11 × 31 =
1,002,540
144 factors (divisors)
What times what is 1,002,540?
What number multiplied by what number equals 1,002,540?
All the combinations of any two natural numbers whose product equals 1,002,540.
1 × 1,002,540 = 1,002,540
2 × 501,270 = 1,002,540
3 × 334,180 = 1,002,540
4 × 250,635 = 1,002,540
5 × 200,508 = 1,002,540
6 × 167,090 = 1,002,540
7 × 143,220 = 1,002,540
10 × 100,254 = 1,002,540
11 × 91,140 = 1,002,540
12 × 83,545 = 1,002,540
14 × 71,610 = 1,002,540
15 × 66,836 = 1,002,540
20 × 50,127 = 1,002,540
21 × 47,740 = 1,002,540
22 × 45,570 = 1,002,540
28 × 35,805 = 1,002,540
30 × 33,418 = 1,002,540
31 × 32,340 = 1,002,540
33 × 30,380 = 1,002,540
35 × 28,644 = 1,002,540
42 × 23,870 = 1,002,540
44 × 22,785 = 1,002,540
49 × 20,460 = 1,002,540
55 × 18,228 = 1,002,540
60 × 16,709 = 1,002,540
62 × 16,170 = 1,002,540
66 × 15,190 = 1,002,540
70 × 14,322 = 1,002,540
77 × 13,020 = 1,002,540
84 × 11,935 = 1,002,540
93 × 10,780 = 1,002,540
98 × 10,230 = 1,002,540
105 × 9,548 = 1,002,540
110 × 9,114 = 1,002,540
124 × 8,085 = 1,002,540
132 × 7,595 = 1,002,540
140 × 7,161 = 1,002,540
147 × 6,820 = 1,002,540
154 × 6,510 = 1,002,540
155 × 6,468 = 1,002,540
165 × 6,076 = 1,002,540
186 × 5,390 = 1,002,540
196 × 5,115 = 1,002,540
210 × 4,774 = 1,002,540
217 × 4,620 = 1,002,540
220 × 4,557 = 1,002,540
231 × 4,340 = 1,002,540
245 × 4,092 = 1,002,540
294 × 3,410 = 1,002,540
308 × 3,255 = 1,002,540
310 × 3,234 = 1,002,540
330 × 3,038 = 1,002,540
341 × 2,940 = 1,002,540
372 × 2,695 = 1,002,540
385 × 2,604 = 1,002,540
420 × 2,387 = 1,002,540
434 × 2,310 = 1,002,540
462 × 2,170 = 1,002,540
465 × 2,156 = 1,002,540
490 × 2,046 = 1,002,540
539 × 1,860 = 1,002,540
588 × 1,705 = 1,002,540
620 × 1,617 = 1,002,540
651 × 1,540 = 1,002,540
660 × 1,519 = 1,002,540
682 × 1,470 = 1,002,540
735 × 1,364 = 1,002,540
770 × 1,302 = 1,002,540
868 × 1,155 = 1,002,540
924 × 1,085 = 1,002,540
930 × 1,078 = 1,002,540
980 × 1,023 = 1,002,540
72 unique multiplications The final answer:
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