To find all the divisors of the number 548,387,127:
- 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 548,387,127:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
548,387,127 = 32 × 43 × 197 × 7,193
548,387,127 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) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 = 24
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 548,387,127
- 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
composite factor = 3
2 =
9
prime factor =
43
composite factor = 3 × 43 =
129
prime factor =
197
composite factor = 3
2 × 43 =
387
composite factor = 3 × 197 =
591
composite factor = 3
2 × 197 =
1,773
prime factor =
7,193
composite factor = 43 × 197 =
8,471
composite factor = 3 × 7,193 =
21,579
This list continues below...
... This list continues from above
composite factor = 3 × 43 × 197 =
25,413
composite factor = 3
2 × 7,193 =
64,737
composite factor = 3
2 × 43 × 197 =
76,239
composite factor = 43 × 7,193 =
309,299
composite factor = 3 × 43 × 7,193 =
927,897
composite factor = 197 × 7,193 =
1,417,021
composite factor = 3
2 × 43 × 7,193 =
2,783,691
composite factor = 3 × 197 × 7,193 =
4,251,063
composite factor = 3
2 × 197 × 7,193 =
12,753,189
composite factor = 43 × 197 × 7,193 =
60,931,903
composite factor = 3 × 43 × 197 × 7,193 =
182,795,709
composite factor = 3
2 × 43 × 197 × 7,193 =
548,387,127
24 factors (divisors)
What times what is 548,387,127?
What number multiplied by what number equals 548,387,127?
All the combinations of any two natural numbers whose product equals 548,387,127.
1 × 548,387,127 = 548,387,127
3 × 182,795,709 = 548,387,127
9 × 60,931,903 = 548,387,127
43 × 12,753,189 = 548,387,127
129 × 4,251,063 = 548,387,127
197 × 2,783,691 = 548,387,127
387 × 1,417,021 = 548,387,127
591 × 927,897 = 548,387,127
1,773 × 309,299 = 548,387,127
7,193 × 76,239 = 548,387,127
8,471 × 64,737 = 548,387,127
21,579 × 25,413 = 548,387,127
12 unique multiplications The final answer:
(scroll down)