To find all the divisors of the number 96,864,872:
- 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 96,864,872:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
96,864,872 = 23 × 13 × 29 × 32,117
96,864,872 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 96,864,872
- 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
composite factor = 2
3 =
8
prime factor =
13
composite factor = 2 × 13 =
26
prime factor =
29
composite factor = 2
2 × 13 =
52
composite factor = 2 × 29 =
58
composite factor = 2
3 × 13 =
104
composite factor = 2
2 × 29 =
116
composite factor = 2
3 × 29 =
232
composite factor = 13 × 29 =
377
composite factor = 2 × 13 × 29 =
754
composite factor = 2
2 × 13 × 29 =
1,508
composite factor = 2
3 × 13 × 29 =
3,016
This list continues below...
... This list continues from above
prime factor =
32,117
composite factor = 2 × 32,117 =
64,234
composite factor = 2
2 × 32,117 =
128,468
composite factor = 2
3 × 32,117 =
256,936
composite factor = 13 × 32,117 =
417,521
composite factor = 2 × 13 × 32,117 =
835,042
composite factor = 29 × 32,117 =
931,393
composite factor = 2
2 × 13 × 32,117 =
1,670,084
composite factor = 2 × 29 × 32,117 =
1,862,786
composite factor = 2
3 × 13 × 32,117 =
3,340,168
composite factor = 2
2 × 29 × 32,117 =
3,725,572
composite factor = 2
3 × 29 × 32,117 =
7,451,144
composite factor = 13 × 29 × 32,117 =
12,108,109
composite factor = 2 × 13 × 29 × 32,117 =
24,216,218
composite factor = 2
2 × 13 × 29 × 32,117 =
48,432,436
composite factor = 2
3 × 13 × 29 × 32,117 =
96,864,872
32 factors (divisors)
What times what is 96,864,872?
What number multiplied by what number equals 96,864,872?
All the combinations of any two natural numbers whose product equals 96,864,872.
1 × 96,864,872 = 96,864,872
2 × 48,432,436 = 96,864,872
4 × 24,216,218 = 96,864,872
8 × 12,108,109 = 96,864,872
13 × 7,451,144 = 96,864,872
26 × 3,725,572 = 96,864,872
29 × 3,340,168 = 96,864,872
52 × 1,862,786 = 96,864,872
58 × 1,670,084 = 96,864,872
104 × 931,393 = 96,864,872
116 × 835,042 = 96,864,872
232 × 417,521 = 96,864,872
377 × 256,936 = 96,864,872
754 × 128,468 = 96,864,872
1,508 × 64,234 = 96,864,872
3,016 × 32,117 = 96,864,872
16 unique multiplications The final answer:
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