To find all the divisors of the number 107,052,485:
- 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 107,052,485:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
107,052,485 = 5 × 17 × 29 × 137 × 317
107,052,485 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 = (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 107,052,485
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- 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 =
5
prime factor =
17
prime factor =
29
composite factor = 5 × 17 =
85
prime factor =
137
composite factor = 5 × 29 =
145
prime factor =
317
composite factor = 17 × 29 =
493
composite factor = 5 × 137 =
685
composite factor = 5 × 317 =
1,585
composite factor = 17 × 137 =
2,329
composite factor = 5 × 17 × 29 =
2,465
composite factor = 29 × 137 =
3,973
composite factor = 17 × 317 =
5,389
composite factor = 29 × 317 =
9,193
This list continues below...
... This list continues from above
composite factor = 5 × 17 × 137 =
11,645
composite factor = 5 × 29 × 137 =
19,865
composite factor = 5 × 17 × 317 =
26,945
composite factor = 137 × 317 =
43,429
composite factor = 5 × 29 × 317 =
45,965
composite factor = 17 × 29 × 137 =
67,541
composite factor = 17 × 29 × 317 =
156,281
composite factor = 5 × 137 × 317 =
217,145
composite factor = 5 × 17 × 29 × 137 =
337,705
composite factor = 17 × 137 × 317 =
738,293
composite factor = 5 × 17 × 29 × 317 =
781,405
composite factor = 29 × 137 × 317 =
1,259,441
composite factor = 5 × 17 × 137 × 317 =
3,691,465
composite factor = 5 × 29 × 137 × 317 =
6,297,205
composite factor = 17 × 29 × 137 × 317 =
21,410,497
composite factor = 5 × 17 × 29 × 137 × 317 =
107,052,485
32 factors (divisors)
What times what is 107,052,485?
What number multiplied by what number equals 107,052,485?
All the combinations of any two natural numbers whose product equals 107,052,485.
1 × 107,052,485 = 107,052,485
5 × 21,410,497 = 107,052,485
17 × 6,297,205 = 107,052,485
29 × 3,691,465 = 107,052,485
85 × 1,259,441 = 107,052,485
137 × 781,405 = 107,052,485
145 × 738,293 = 107,052,485
317 × 337,705 = 107,052,485
493 × 217,145 = 107,052,485
685 × 156,281 = 107,052,485
1,585 × 67,541 = 107,052,485
2,329 × 45,965 = 107,052,485
2,465 × 43,429 = 107,052,485
3,973 × 26,945 = 107,052,485
5,389 × 19,865 = 107,052,485
9,193 × 11,645 = 107,052,485
16 unique multiplications The final answer:
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