To find all the divisors of the number 68,000,000,625:
- 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 68,000,000,625:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
68,000,000,625 = 32 × 54 × 12,088,889
68,000,000,625 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 = (2 + 1) × (4 + 1) × (1 + 1) = 3 × 5 × 2 = 30
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 68,000,000,625
- 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 =
3
prime factor =
5
composite factor = 3
2 =
9
composite factor = 3 × 5 =
15
composite factor = 5
2 =
25
composite factor = 3
2 × 5 =
45
composite factor = 3 × 5
2 =
75
composite factor = 5
3 =
125
composite factor = 3
2 × 5
2 =
225
composite factor = 3 × 5
3 =
375
composite factor = 5
4 =
625
composite factor = 3
2 × 5
3 =
1,125
composite factor = 3 × 5
4 =
1,875
composite factor = 3
2 × 5
4 =
5,625
This list continues below...
... This list continues from above
prime factor =
12,088,889
composite factor = 3 × 12,088,889 =
36,266,667
composite factor = 5 × 12,088,889 =
60,444,445
composite factor = 3
2 × 12,088,889 =
108,800,001
composite factor = 3 × 5 × 12,088,889 =
181,333,335
composite factor = 5
2 × 12,088,889 =
302,222,225
composite factor = 3
2 × 5 × 12,088,889 =
544,000,005
composite factor = 3 × 5
2 × 12,088,889 =
906,666,675
composite factor = 5
3 × 12,088,889 =
1,511,111,125
composite factor = 3
2 × 5
2 × 12,088,889 =
2,720,000,025
composite factor = 3 × 5
3 × 12,088,889 =
4,533,333,375
composite factor = 5
4 × 12,088,889 =
7,555,555,625
composite factor = 3
2 × 5
3 × 12,088,889 =
13,600,000,125
composite factor = 3 × 5
4 × 12,088,889 =
22,666,666,875
composite factor = 3
2 × 5
4 × 12,088,889 =
68,000,000,625
30 factors (divisors)
What times what is 68,000,000,625?
What number multiplied by what number equals 68,000,000,625?
All the combinations of any two natural numbers whose product equals 68,000,000,625.
1 × 68,000,000,625 = 68,000,000,625
3 × 22,666,666,875 = 68,000,000,625
5 × 13,600,000,125 = 68,000,000,625
9 × 7,555,555,625 = 68,000,000,625
15 × 4,533,333,375 = 68,000,000,625
25 × 2,720,000,025 = 68,000,000,625
45 × 1,511,111,125 = 68,000,000,625
75 × 906,666,675 = 68,000,000,625
125 × 544,000,005 = 68,000,000,625
225 × 302,222,225 = 68,000,000,625
375 × 181,333,335 = 68,000,000,625
625 × 108,800,001 = 68,000,000,625
1,125 × 60,444,445 = 68,000,000,625
1,875 × 36,266,667 = 68,000,000,625
5,625 × 12,088,889 = 68,000,000,625
15 unique multiplications The final answer:
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