To find all the divisors of the number 8,900,000,007:
- 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 8,900,000,007:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
8,900,000,007 = 3 × 19 × 67 × 1,019 × 2,287
8,900,000,007 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 8,900,000,007
- 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 =
3
prime factor =
19
composite factor = 3 × 19 =
57
prime factor =
67
composite factor = 3 × 67 =
201
prime factor =
1,019
composite factor = 19 × 67 =
1,273
prime factor =
2,287
composite factor = 3 × 1,019 =
3,057
composite factor = 3 × 19 × 67 =
3,819
composite factor = 3 × 2,287 =
6,861
composite factor = 19 × 1,019 =
19,361
composite factor = 19 × 2,287 =
43,453
composite factor = 3 × 19 × 1,019 =
58,083
composite factor = 67 × 1,019 =
68,273
This list continues below...
... This list continues from above
composite factor = 3 × 19 × 2,287 =
130,359
composite factor = 67 × 2,287 =
153,229
composite factor = 3 × 67 × 1,019 =
204,819
composite factor = 3 × 67 × 2,287 =
459,687
composite factor = 19 × 67 × 1,019 =
1,297,187
composite factor = 1,019 × 2,287 =
2,330,453
composite factor = 19 × 67 × 2,287 =
2,911,351
composite factor = 3 × 19 × 67 × 1,019 =
3,891,561
composite factor = 3 × 1,019 × 2,287 =
6,991,359
composite factor = 3 × 19 × 67 × 2,287 =
8,734,053
composite factor = 19 × 1,019 × 2,287 =
44,278,607
composite factor = 3 × 19 × 1,019 × 2,287 =
132,835,821
composite factor = 67 × 1,019 × 2,287 =
156,140,351
composite factor = 3 × 67 × 1,019 × 2,287 =
468,421,053
composite factor = 19 × 67 × 1,019 × 2,287 =
2,966,666,669
composite factor = 3 × 19 × 67 × 1,019 × 2,287 =
8,900,000,007
32 factors (divisors)
What times what is 8,900,000,007?
What number multiplied by what number equals 8,900,000,007?
All the combinations of any two natural numbers whose product equals 8,900,000,007.
1 × 8,900,000,007 = 8,900,000,007
3 × 2,966,666,669 = 8,900,000,007
19 × 468,421,053 = 8,900,000,007
57 × 156,140,351 = 8,900,000,007
67 × 132,835,821 = 8,900,000,007
201 × 44,278,607 = 8,900,000,007
1,019 × 8,734,053 = 8,900,000,007
1,273 × 6,991,359 = 8,900,000,007
2,287 × 3,891,561 = 8,900,000,007
3,057 × 2,911,351 = 8,900,000,007
3,819 × 2,330,453 = 8,900,000,007
6,861 × 1,297,187 = 8,900,000,007
19,361 × 459,687 = 8,900,000,007
43,453 × 204,819 = 8,900,000,007
58,083 × 153,229 = 8,900,000,007
68,273 × 130,359 = 8,900,000,007
16 unique multiplications The final answer:
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