To find all the divisors of the number 856,435,704:
- 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 856,435,704:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
856,435,704 = 23 × 3 × 107 × 333,503
856,435,704 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) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 856,435,704
- 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
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2
3 × 3 =
24
prime factor =
107
composite factor = 2 × 107 =
214
composite factor = 3 × 107 =
321
composite factor = 2
2 × 107 =
428
composite factor = 2 × 3 × 107 =
642
composite factor = 2
3 × 107 =
856
composite factor = 2
2 × 3 × 107 =
1,284
composite factor = 2
3 × 3 × 107 =
2,568
This list continues below...
... This list continues from above
prime factor =
333,503
composite factor = 2 × 333,503 =
667,006
composite factor = 3 × 333,503 =
1,000,509
composite factor = 2
2 × 333,503 =
1,334,012
composite factor = 2 × 3 × 333,503 =
2,001,018
composite factor = 2
3 × 333,503 =
2,668,024
composite factor = 2
2 × 3 × 333,503 =
4,002,036
composite factor = 2
3 × 3 × 333,503 =
8,004,072
composite factor = 107 × 333,503 =
35,684,821
composite factor = 2 × 107 × 333,503 =
71,369,642
composite factor = 3 × 107 × 333,503 =
107,054,463
composite factor = 2
2 × 107 × 333,503 =
142,739,284
composite factor = 2 × 3 × 107 × 333,503 =
214,108,926
composite factor = 2
3 × 107 × 333,503 =
285,478,568
composite factor = 2
2 × 3 × 107 × 333,503 =
428,217,852
composite factor = 2
3 × 3 × 107 × 333,503 =
856,435,704
32 factors (divisors)
What times what is 856,435,704?
What number multiplied by what number equals 856,435,704?
All the combinations of any two natural numbers whose product equals 856,435,704.
1 × 856,435,704 = 856,435,704
2 × 428,217,852 = 856,435,704
3 × 285,478,568 = 856,435,704
4 × 214,108,926 = 856,435,704
6 × 142,739,284 = 856,435,704
8 × 107,054,463 = 856,435,704
12 × 71,369,642 = 856,435,704
24 × 35,684,821 = 856,435,704
107 × 8,004,072 = 856,435,704
214 × 4,002,036 = 856,435,704
321 × 2,668,024 = 856,435,704
428 × 2,001,018 = 856,435,704
642 × 1,334,012 = 856,435,704
856 × 1,000,509 = 856,435,704
1,284 × 667,006 = 856,435,704
2,568 × 333,503 = 856,435,704
16 unique multiplications The final answer:
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