To find all the divisors of the number 59,856,440:
- 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 59,856,440:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
59,856,440 = 23 × 5 × 72 × 30,539
59,856,440 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) × (1 + 1) × (2 + 1) × (1 + 1) = 4 × 2 × 3 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 59,856,440
- 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
composite factor = 2
2 =
4
prime factor =
5
prime factor =
7
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2 × 7 =
14
composite factor = 2
2 × 5 =
20
composite factor = 2
2 × 7 =
28
composite factor = 5 × 7 =
35
composite factor = 2
3 × 5 =
40
composite factor = 7
2 =
49
composite factor = 2
3 × 7 =
56
composite factor = 2 × 5 × 7 =
70
composite factor = 2 × 7
2 =
98
composite factor = 2
2 × 5 × 7 =
140
composite factor = 2
2 × 7
2 =
196
composite factor = 5 × 7
2 =
245
composite factor = 2
3 × 5 × 7 =
280
composite factor = 2
3 × 7
2 =
392
composite factor = 2 × 5 × 7
2 =
490
composite factor = 2
2 × 5 × 7
2 =
980
composite factor = 2
3 × 5 × 7
2 =
1,960
This list continues below...
... This list continues from above
prime factor =
30,539
composite factor = 2 × 30,539 =
61,078
composite factor = 2
2 × 30,539 =
122,156
composite factor = 5 × 30,539 =
152,695
composite factor = 7 × 30,539 =
213,773
composite factor = 2
3 × 30,539 =
244,312
composite factor = 2 × 5 × 30,539 =
305,390
composite factor = 2 × 7 × 30,539 =
427,546
composite factor = 2
2 × 5 × 30,539 =
610,780
composite factor = 2
2 × 7 × 30,539 =
855,092
composite factor = 5 × 7 × 30,539 =
1,068,865
composite factor = 2
3 × 5 × 30,539 =
1,221,560
composite factor = 7
2 × 30,539 =
1,496,411
composite factor = 2
3 × 7 × 30,539 =
1,710,184
composite factor = 2 × 5 × 7 × 30,539 =
2,137,730
composite factor = 2 × 7
2 × 30,539 =
2,992,822
composite factor = 2
2 × 5 × 7 × 30,539 =
4,275,460
composite factor = 2
2 × 7
2 × 30,539 =
5,985,644
composite factor = 5 × 7
2 × 30,539 =
7,482,055
composite factor = 2
3 × 5 × 7 × 30,539 =
8,550,920
composite factor = 2
3 × 7
2 × 30,539 =
11,971,288
composite factor = 2 × 5 × 7
2 × 30,539 =
14,964,110
composite factor = 2
2 × 5 × 7
2 × 30,539 =
29,928,220
composite factor = 2
3 × 5 × 7
2 × 30,539 =
59,856,440
48 factors (divisors)
What times what is 59,856,440?
What number multiplied by what number equals 59,856,440?
All the combinations of any two natural numbers whose product equals 59,856,440.
1 × 59,856,440 = 59,856,440
2 × 29,928,220 = 59,856,440
4 × 14,964,110 = 59,856,440
5 × 11,971,288 = 59,856,440
7 × 8,550,920 = 59,856,440
8 × 7,482,055 = 59,856,440
10 × 5,985,644 = 59,856,440
14 × 4,275,460 = 59,856,440
20 × 2,992,822 = 59,856,440
28 × 2,137,730 = 59,856,440
35 × 1,710,184 = 59,856,440
40 × 1,496,411 = 59,856,440
49 × 1,221,560 = 59,856,440
56 × 1,068,865 = 59,856,440
70 × 855,092 = 59,856,440
98 × 610,780 = 59,856,440
140 × 427,546 = 59,856,440
196 × 305,390 = 59,856,440
245 × 244,312 = 59,856,440
280 × 213,773 = 59,856,440
392 × 152,695 = 59,856,440
490 × 122,156 = 59,856,440
980 × 61,078 = 59,856,440
1,960 × 30,539 = 59,856,440
24 unique multiplications The final answer:
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