To find all the divisors of the number 124,488:
- 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 124,488:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
124,488 = 23 × 32 × 7 × 13 × 19
124,488 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 = (3 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 3 × 2 × 2 × 2 = 96
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 124,488
- 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
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 2
3 =
8
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
prime factor =
13
composite factor = 2 × 7 =
14
composite factor = 2 × 3
2 =
18
prime factor =
19
composite factor = 3 × 7 =
21
composite factor = 2
3 × 3 =
24
composite factor = 2 × 13 =
26
composite factor = 2
2 × 7 =
28
composite factor = 2
2 × 3
2 =
36
composite factor = 2 × 19 =
38
composite factor = 3 × 13 =
39
composite factor = 2 × 3 × 7 =
42
composite factor = 2
2 × 13 =
52
composite factor = 2
3 × 7 =
56
composite factor = 3 × 19 =
57
composite factor = 3
2 × 7 =
63
composite factor = 2
3 × 3
2 =
72
composite factor = 2
2 × 19 =
76
composite factor = 2 × 3 × 13 =
78
composite factor = 2
2 × 3 × 7 =
84
composite factor = 7 × 13 =
91
composite factor = 2
3 × 13 =
104
composite factor = 2 × 3 × 19 =
114
composite factor = 3
2 × 13 =
117
composite factor = 2 × 3
2 × 7 =
126
composite factor = 7 × 19 =
133
composite factor = 2
3 × 19 =
152
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2
3 × 3 × 7 =
168
composite factor = 3
2 × 19 =
171
composite factor = 2 × 7 × 13 =
182
composite factor = 2
2 × 3 × 19 =
228
composite factor = 2 × 3
2 × 13 =
234
composite factor = 13 × 19 =
247
composite factor = 2
2 × 3
2 × 7 =
252
composite factor = 2 × 7 × 19 =
266
composite factor = 3 × 7 × 13 =
273
composite factor = 2
3 × 3 × 13 =
312
composite factor = 2 × 3
2 × 19 =
342
This list continues below...
... This list continues from above
composite factor = 2
2 × 7 × 13 =
364
composite factor = 3 × 7 × 19 =
399
composite factor = 2
3 × 3 × 19 =
456
composite factor = 2
2 × 3
2 × 13 =
468
composite factor = 2 × 13 × 19 =
494
composite factor = 2
3 × 3
2 × 7 =
504
composite factor = 2
2 × 7 × 19 =
532
composite factor = 2 × 3 × 7 × 13 =
546
composite factor = 2
2 × 3
2 × 19 =
684
composite factor = 2
3 × 7 × 13 =
728
composite factor = 3 × 13 × 19 =
741
composite factor = 2 × 3 × 7 × 19 =
798
composite factor = 3
2 × 7 × 13 =
819
composite factor = 2
3 × 3
2 × 13 =
936
composite factor = 2
2 × 13 × 19 =
988
composite factor = 2
3 × 7 × 19 =
1,064
composite factor = 2
2 × 3 × 7 × 13 =
1,092
composite factor = 3
2 × 7 × 19 =
1,197
composite factor = 2
3 × 3
2 × 19 =
1,368
composite factor = 2 × 3 × 13 × 19 =
1,482
composite factor = 2
2 × 3 × 7 × 19 =
1,596
composite factor = 2 × 3
2 × 7 × 13 =
1,638
composite factor = 7 × 13 × 19 =
1,729
composite factor = 2
3 × 13 × 19 =
1,976
composite factor = 2
3 × 3 × 7 × 13 =
2,184
composite factor = 3
2 × 13 × 19 =
2,223
composite factor = 2 × 3
2 × 7 × 19 =
2,394
composite factor = 2
2 × 3 × 13 × 19 =
2,964
composite factor = 2
3 × 3 × 7 × 19 =
3,192
composite factor = 2
2 × 3
2 × 7 × 13 =
3,276
composite factor = 2 × 7 × 13 × 19 =
3,458
composite factor = 2 × 3
2 × 13 × 19 =
4,446
composite factor = 2
2 × 3
2 × 7 × 19 =
4,788
composite factor = 3 × 7 × 13 × 19 =
5,187
composite factor = 2
3 × 3 × 13 × 19 =
5,928
composite factor = 2
3 × 3
2 × 7 × 13 =
6,552
composite factor = 2
2 × 7 × 13 × 19 =
6,916
composite factor = 2
2 × 3
2 × 13 × 19 =
8,892
composite factor = 2
3 × 3
2 × 7 × 19 =
9,576
composite factor = 2 × 3 × 7 × 13 × 19 =
10,374
composite factor = 2
3 × 7 × 13 × 19 =
13,832
composite factor = 3
2 × 7 × 13 × 19 =
15,561
composite factor = 2
3 × 3
2 × 13 × 19 =
17,784
composite factor = 2
2 × 3 × 7 × 13 × 19 =
20,748
composite factor = 2 × 3
2 × 7 × 13 × 19 =
31,122
composite factor = 2
3 × 3 × 7 × 13 × 19 =
41,496
composite factor = 2
2 × 3
2 × 7 × 13 × 19 =
62,244
composite factor = 2
3 × 3
2 × 7 × 13 × 19 =
124,488
96 factors (divisors)
What times what is 124,488?
What number multiplied by what number equals 124,488?
All the combinations of any two natural numbers whose product equals 124,488.
1 × 124,488 = 124,488
2 × 62,244 = 124,488
3 × 41,496 = 124,488
4 × 31,122 = 124,488
6 × 20,748 = 124,488
7 × 17,784 = 124,488
8 × 15,561 = 124,488
9 × 13,832 = 124,488
12 × 10,374 = 124,488
13 × 9,576 = 124,488
14 × 8,892 = 124,488
18 × 6,916 = 124,488
19 × 6,552 = 124,488
21 × 5,928 = 124,488
24 × 5,187 = 124,488
26 × 4,788 = 124,488
28 × 4,446 = 124,488
36 × 3,458 = 124,488
38 × 3,276 = 124,488
39 × 3,192 = 124,488
42 × 2,964 = 124,488
52 × 2,394 = 124,488
56 × 2,223 = 124,488
57 × 2,184 = 124,488
63 × 1,976 = 124,488
72 × 1,729 = 124,488
76 × 1,638 = 124,488
78 × 1,596 = 124,488
84 × 1,482 = 124,488
91 × 1,368 = 124,488
104 × 1,197 = 124,488
114 × 1,092 = 124,488
117 × 1,064 = 124,488
126 × 988 = 124,488
133 × 936 = 124,488
152 × 819 = 124,488
156 × 798 = 124,488
168 × 741 = 124,488
171 × 728 = 124,488
182 × 684 = 124,488
228 × 546 = 124,488
234 × 532 = 124,488
247 × 504 = 124,488
252 × 494 = 124,488
266 × 468 = 124,488
273 × 456 = 124,488
312 × 399 = 124,488
342 × 364 = 124,488
48 unique multiplications The final answer:
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