To find all the divisors of the number 71,010,848:
- 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 71,010,848:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
71,010,848 = 25 × 523 × 4,243
71,010,848 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 = (5 + 1) × (1 + 1) × (1 + 1) = 6 × 2 × 2 = 24
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 71,010,848
- 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 =
2
composite factor = 2
2 =
4
composite factor = 2
3 =
8
composite factor = 2
4 =
16
composite factor = 2
5 =
32
prime factor =
523
composite factor = 2 × 523 =
1,046
composite factor = 2
2 × 523 =
2,092
composite factor = 2
3 × 523 =
4,184
prime factor =
4,243
composite factor = 2
4 × 523 =
8,368
This list continues below...
... This list continues from above
composite factor = 2 × 4,243 =
8,486
composite factor = 2
5 × 523 =
16,736
composite factor = 2
2 × 4,243 =
16,972
composite factor = 2
3 × 4,243 =
33,944
composite factor = 2
4 × 4,243 =
67,888
composite factor = 2
5 × 4,243 =
135,776
composite factor = 523 × 4,243 =
2,219,089
composite factor = 2 × 523 × 4,243 =
4,438,178
composite factor = 2
2 × 523 × 4,243 =
8,876,356
composite factor = 2
3 × 523 × 4,243 =
17,752,712
composite factor = 2
4 × 523 × 4,243 =
35,505,424
composite factor = 2
5 × 523 × 4,243 =
71,010,848
24 factors (divisors)
What times what is 71,010,848?
What number multiplied by what number equals 71,010,848?
All the combinations of any two natural numbers whose product equals 71,010,848.
1 × 71,010,848 = 71,010,848
2 × 35,505,424 = 71,010,848
4 × 17,752,712 = 71,010,848
8 × 8,876,356 = 71,010,848
16 × 4,438,178 = 71,010,848
32 × 2,219,089 = 71,010,848
523 × 135,776 = 71,010,848
1,046 × 67,888 = 71,010,848
2,092 × 33,944 = 71,010,848
4,184 × 16,972 = 71,010,848
4,243 × 16,736 = 71,010,848
8,368 × 8,486 = 71,010,848
12 unique multiplications The final answer:
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