To find all the divisors of the number 32,940,016:
- 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 32,940,016:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
32,940,016 = 24 × 17 × 347 × 349
32,940,016 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 32,940,016
- 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
prime factor =
17
composite factor = 2 × 17 =
34
composite factor = 2
2 × 17 =
68
composite factor = 2
3 × 17 =
136
composite factor = 2
4 × 17 =
272
prime factor =
347
prime factor =
349
composite factor = 2 × 347 =
694
composite factor = 2 × 349 =
698
composite factor = 2
2 × 347 =
1,388
composite factor = 2
2 × 349 =
1,396
composite factor = 2
3 × 347 =
2,776
composite factor = 2
3 × 349 =
2,792
composite factor = 2
4 × 347 =
5,552
composite factor = 2
4 × 349 =
5,584
This list continues below...
... This list continues from above
composite factor = 17 × 347 =
5,899
composite factor = 17 × 349 =
5,933
composite factor = 2 × 17 × 347 =
11,798
composite factor = 2 × 17 × 349 =
11,866
composite factor = 2
2 × 17 × 347 =
23,596
composite factor = 2
2 × 17 × 349 =
23,732
composite factor = 2
3 × 17 × 347 =
47,192
composite factor = 2
3 × 17 × 349 =
47,464
composite factor = 2
4 × 17 × 347 =
94,384
composite factor = 2
4 × 17 × 349 =
94,928
composite factor = 347 × 349 =
121,103
composite factor = 2 × 347 × 349 =
242,206
composite factor = 2
2 × 347 × 349 =
484,412
composite factor = 2
3 × 347 × 349 =
968,824
composite factor = 2
4 × 347 × 349 =
1,937,648
composite factor = 17 × 347 × 349 =
2,058,751
composite factor = 2 × 17 × 347 × 349 =
4,117,502
composite factor = 2
2 × 17 × 347 × 349 =
8,235,004
composite factor = 2
3 × 17 × 347 × 349 =
16,470,008
composite factor = 2
4 × 17 × 347 × 349 =
32,940,016
40 factors (divisors)
What times what is 32,940,016?
What number multiplied by what number equals 32,940,016?
All the combinations of any two natural numbers whose product equals 32,940,016.
1 × 32,940,016 = 32,940,016
2 × 16,470,008 = 32,940,016
4 × 8,235,004 = 32,940,016
8 × 4,117,502 = 32,940,016
16 × 2,058,751 = 32,940,016
17 × 1,937,648 = 32,940,016
34 × 968,824 = 32,940,016
68 × 484,412 = 32,940,016
136 × 242,206 = 32,940,016
272 × 121,103 = 32,940,016
347 × 94,928 = 32,940,016
349 × 94,384 = 32,940,016
694 × 47,464 = 32,940,016
698 × 47,192 = 32,940,016
1,388 × 23,732 = 32,940,016
1,396 × 23,596 = 32,940,016
2,776 × 11,866 = 32,940,016
2,792 × 11,798 = 32,940,016
5,552 × 5,933 = 32,940,016
5,584 × 5,899 = 32,940,016
20 unique multiplications The final answer:
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