To find all the divisors of the number 7,400,000,013:
- 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 7,400,000,013:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
7,400,000,013 = 3 × 7 × 23 × 227 × 67,493
7,400,000,013 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 7,400,000,013
- 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 =
7
composite factor = 3 × 7 =
21
prime factor =
23
composite factor = 3 × 23 =
69
composite factor = 7 × 23 =
161
prime factor =
227
composite factor = 3 × 7 × 23 =
483
composite factor = 3 × 227 =
681
composite factor = 7 × 227 =
1,589
composite factor = 3 × 7 × 227 =
4,767
composite factor = 23 × 227 =
5,221
composite factor = 3 × 23 × 227 =
15,663
composite factor = 7 × 23 × 227 =
36,547
prime factor =
67,493
This list continues below...
... This list continues from above
composite factor = 3 × 7 × 23 × 227 =
109,641
composite factor = 3 × 67,493 =
202,479
composite factor = 7 × 67,493 =
472,451
composite factor = 3 × 7 × 67,493 =
1,417,353
composite factor = 23 × 67,493 =
1,552,339
composite factor = 3 × 23 × 67,493 =
4,657,017
composite factor = 7 × 23 × 67,493 =
10,866,373
composite factor = 227 × 67,493 =
15,320,911
composite factor = 3 × 7 × 23 × 67,493 =
32,599,119
composite factor = 3 × 227 × 67,493 =
45,962,733
composite factor = 7 × 227 × 67,493 =
107,246,377
composite factor = 3 × 7 × 227 × 67,493 =
321,739,131
composite factor = 23 × 227 × 67,493 =
352,380,953
composite factor = 3 × 23 × 227 × 67,493 =
1,057,142,859
composite factor = 7 × 23 × 227 × 67,493 =
2,466,666,671
composite factor = 3 × 7 × 23 × 227 × 67,493 =
7,400,000,013
32 factors (divisors)
What times what is 7,400,000,013?
What number multiplied by what number equals 7,400,000,013?
All the combinations of any two natural numbers whose product equals 7,400,000,013.
1 × 7,400,000,013 = 7,400,000,013
3 × 2,466,666,671 = 7,400,000,013
7 × 1,057,142,859 = 7,400,000,013
21 × 352,380,953 = 7,400,000,013
23 × 321,739,131 = 7,400,000,013
69 × 107,246,377 = 7,400,000,013
161 × 45,962,733 = 7,400,000,013
227 × 32,599,119 = 7,400,000,013
483 × 15,320,911 = 7,400,000,013
681 × 10,866,373 = 7,400,000,013
1,589 × 4,657,017 = 7,400,000,013
4,767 × 1,552,339 = 7,400,000,013
5,221 × 1,417,353 = 7,400,000,013
15,663 × 472,451 = 7,400,000,013
36,547 × 202,479 = 7,400,000,013
67,493 × 109,641 = 7,400,000,013
16 unique multiplications The final answer:
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