To find all the divisors of the number 5,000,000,115:
- 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 5,000,000,115:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
5,000,000,115 = 3 × 5 × 112 × 61 × 45,161
5,000,000,115 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) × (2 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 3 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 5,000,000,115
- 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
prime factor =
11
composite factor = 3 × 5 =
15
composite factor = 3 × 11 =
33
composite factor = 5 × 11 =
55
prime factor =
61
composite factor = 11
2 =
121
composite factor = 3 × 5 × 11 =
165
composite factor = 3 × 61 =
183
composite factor = 5 × 61 =
305
composite factor = 3 × 11
2 =
363
composite factor = 5 × 11
2 =
605
composite factor = 11 × 61 =
671
composite factor = 3 × 5 × 61 =
915
composite factor = 3 × 5 × 11
2 =
1,815
composite factor = 3 × 11 × 61 =
2,013
composite factor = 5 × 11 × 61 =
3,355
composite factor = 11
2 × 61 =
7,381
composite factor = 3 × 5 × 11 × 61 =
10,065
composite factor = 3 × 11
2 × 61 =
22,143
composite factor = 5 × 11
2 × 61 =
36,905
prime factor =
45,161
This list continues below...
... This list continues from above
composite factor = 3 × 5 × 11
2 × 61 =
110,715
composite factor = 3 × 45,161 =
135,483
composite factor = 5 × 45,161 =
225,805
composite factor = 11 × 45,161 =
496,771
composite factor = 3 × 5 × 45,161 =
677,415
composite factor = 3 × 11 × 45,161 =
1,490,313
composite factor = 5 × 11 × 45,161 =
2,483,855
composite factor = 61 × 45,161 =
2,754,821
composite factor = 11
2 × 45,161 =
5,464,481
composite factor = 3 × 5 × 11 × 45,161 =
7,451,565
composite factor = 3 × 61 × 45,161 =
8,264,463
composite factor = 5 × 61 × 45,161 =
13,774,105
composite factor = 3 × 11
2 × 45,161 =
16,393,443
composite factor = 5 × 11
2 × 45,161 =
27,322,405
composite factor = 11 × 61 × 45,161 =
30,303,031
composite factor = 3 × 5 × 61 × 45,161 =
41,322,315
composite factor = 3 × 5 × 11
2 × 45,161 =
81,967,215
composite factor = 3 × 11 × 61 × 45,161 =
90,909,093
composite factor = 5 × 11 × 61 × 45,161 =
151,515,155
composite factor = 11
2 × 61 × 45,161 =
333,333,341
composite factor = 3 × 5 × 11 × 61 × 45,161 =
454,545,465
composite factor = 3 × 11
2 × 61 × 45,161 =
1,000,000,023
composite factor = 5 × 11
2 × 61 × 45,161 =
1,666,666,705
composite factor = 3 × 5 × 11
2 × 61 × 45,161 =
5,000,000,115
48 factors (divisors)
What times what is 5,000,000,115?
What number multiplied by what number equals 5,000,000,115?
All the combinations of any two natural numbers whose product equals 5,000,000,115.
1 × 5,000,000,115 = 5,000,000,115
3 × 1,666,666,705 = 5,000,000,115
5 × 1,000,000,023 = 5,000,000,115
11 × 454,545,465 = 5,000,000,115
15 × 333,333,341 = 5,000,000,115
33 × 151,515,155 = 5,000,000,115
55 × 90,909,093 = 5,000,000,115
61 × 81,967,215 = 5,000,000,115
121 × 41,322,315 = 5,000,000,115
165 × 30,303,031 = 5,000,000,115
183 × 27,322,405 = 5,000,000,115
305 × 16,393,443 = 5,000,000,115
363 × 13,774,105 = 5,000,000,115
605 × 8,264,463 = 5,000,000,115
671 × 7,451,565 = 5,000,000,115
915 × 5,464,481 = 5,000,000,115
1,815 × 2,754,821 = 5,000,000,115
2,013 × 2,483,855 = 5,000,000,115
3,355 × 1,490,313 = 5,000,000,115
7,381 × 677,415 = 5,000,000,115
10,065 × 496,771 = 5,000,000,115
22,143 × 225,805 = 5,000,000,115
36,905 × 135,483 = 5,000,000,115
45,161 × 110,715 = 5,000,000,115
24 unique multiplications The final answer:
(scroll down)