To find all the divisors of the number 3,000,000,138:
- 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 3,000,000,138:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,000,000,138 = 2 × 3 × 31 × 809 × 19,937
3,000,000,138 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 3,000,000,138
- 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 =
2
prime factor =
3
composite factor = 2 × 3 =
6
prime factor =
31
composite factor = 2 × 31 =
62
composite factor = 3 × 31 =
93
composite factor = 2 × 3 × 31 =
186
prime factor =
809
composite factor = 2 × 809 =
1,618
composite factor = 3 × 809 =
2,427
composite factor = 2 × 3 × 809 =
4,854
prime factor =
19,937
composite factor = 31 × 809 =
25,079
composite factor = 2 × 19,937 =
39,874
composite factor = 2 × 31 × 809 =
50,158
This list continues below...
... This list continues from above
composite factor = 3 × 19,937 =
59,811
composite factor = 3 × 31 × 809 =
75,237
composite factor = 2 × 3 × 19,937 =
119,622
composite factor = 2 × 3 × 31 × 809 =
150,474
composite factor = 31 × 19,937 =
618,047
composite factor = 2 × 31 × 19,937 =
1,236,094
composite factor = 3 × 31 × 19,937 =
1,854,141
composite factor = 2 × 3 × 31 × 19,937 =
3,708,282
composite factor = 809 × 19,937 =
16,129,033
composite factor = 2 × 809 × 19,937 =
32,258,066
composite factor = 3 × 809 × 19,937 =
48,387,099
composite factor = 2 × 3 × 809 × 19,937 =
96,774,198
composite factor = 31 × 809 × 19,937 =
500,000,023
composite factor = 2 × 31 × 809 × 19,937 =
1,000,000,046
composite factor = 3 × 31 × 809 × 19,937 =
1,500,000,069
composite factor = 2 × 3 × 31 × 809 × 19,937 =
3,000,000,138
32 factors (divisors)
What times what is 3,000,000,138?
What number multiplied by what number equals 3,000,000,138?
All the combinations of any two natural numbers whose product equals 3,000,000,138.
1 × 3,000,000,138 = 3,000,000,138
2 × 1,500,000,069 = 3,000,000,138
3 × 1,000,000,046 = 3,000,000,138
6 × 500,000,023 = 3,000,000,138
31 × 96,774,198 = 3,000,000,138
62 × 48,387,099 = 3,000,000,138
93 × 32,258,066 = 3,000,000,138
186 × 16,129,033 = 3,000,000,138
809 × 3,708,282 = 3,000,000,138
1,618 × 1,854,141 = 3,000,000,138
2,427 × 1,236,094 = 3,000,000,138
4,854 × 618,047 = 3,000,000,138
19,937 × 150,474 = 3,000,000,138
25,079 × 119,622 = 3,000,000,138
39,874 × 75,237 = 3,000,000,138
50,158 × 59,811 = 3,000,000,138
16 unique multiplications The final answer:
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