To find all the divisors of the number 17,000,000,125:
- 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 17,000,000,125:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
17,000,000,125 = 53 × 79 × 457 × 3,767
17,000,000,125 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 17,000,000,125
- 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 =
5
composite factor = 5
2 =
25
prime factor =
79
composite factor = 5
3 =
125
composite factor = 5 × 79 =
395
prime factor =
457
composite factor = 5
2 × 79 =
1,975
composite factor = 5 × 457 =
2,285
prime factor =
3,767
composite factor = 5
3 × 79 =
9,875
composite factor = 5
2 × 457 =
11,425
composite factor = 5 × 3,767 =
18,835
composite factor = 79 × 457 =
36,103
composite factor = 5
3 × 457 =
57,125
composite factor = 5
2 × 3,767 =
94,175
This list continues below...
... This list continues from above
composite factor = 5 × 79 × 457 =
180,515
composite factor = 79 × 3,767 =
297,593
composite factor = 5
3 × 3,767 =
470,875
composite factor = 5
2 × 79 × 457 =
902,575
composite factor = 5 × 79 × 3,767 =
1,487,965
composite factor = 457 × 3,767 =
1,721,519
composite factor = 5
3 × 79 × 457 =
4,512,875
composite factor = 5
2 × 79 × 3,767 =
7,439,825
composite factor = 5 × 457 × 3,767 =
8,607,595
composite factor = 5
3 × 79 × 3,767 =
37,199,125
composite factor = 5
2 × 457 × 3,767 =
43,037,975
composite factor = 79 × 457 × 3,767 =
136,000,001
composite factor = 5
3 × 457 × 3,767 =
215,189,875
composite factor = 5 × 79 × 457 × 3,767 =
680,000,005
composite factor = 5
2 × 79 × 457 × 3,767 =
3,400,000,025
composite factor = 5
3 × 79 × 457 × 3,767 =
17,000,000,125
32 factors (divisors)
What times what is 17,000,000,125?
What number multiplied by what number equals 17,000,000,125?
All the combinations of any two natural numbers whose product equals 17,000,000,125.
1 × 17,000,000,125 = 17,000,000,125
5 × 3,400,000,025 = 17,000,000,125
25 × 680,000,005 = 17,000,000,125
79 × 215,189,875 = 17,000,000,125
125 × 136,000,001 = 17,000,000,125
395 × 43,037,975 = 17,000,000,125
457 × 37,199,125 = 17,000,000,125
1,975 × 8,607,595 = 17,000,000,125
2,285 × 7,439,825 = 17,000,000,125
3,767 × 4,512,875 = 17,000,000,125
9,875 × 1,721,519 = 17,000,000,125
11,425 × 1,487,965 = 17,000,000,125
18,835 × 902,575 = 17,000,000,125
36,103 × 470,875 = 17,000,000,125
57,125 × 297,593 = 17,000,000,125
94,175 × 180,515 = 17,000,000,125
16 unique multiplications The final answer:
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