To find all the divisors of the number 32,939,732:
- 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 32,939,732:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
32,939,732 = 22 × 7 × 31 × 137 × 277
32,939,732 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) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 32,939,732
- 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
prime factor =
7
composite factor = 2 × 7 =
14
composite factor = 2
2 × 7 =
28
prime factor =
31
composite factor = 2 × 31 =
62
composite factor = 2
2 × 31 =
124
prime factor =
137
composite factor = 7 × 31 =
217
composite factor = 2 × 137 =
274
prime factor =
277
composite factor = 2 × 7 × 31 =
434
composite factor = 2
2 × 137 =
548
composite factor = 2 × 277 =
554
composite factor = 2
2 × 7 × 31 =
868
composite factor = 7 × 137 =
959
composite factor = 2
2 × 277 =
1,108
composite factor = 2 × 7 × 137 =
1,918
composite factor = 7 × 277 =
1,939
composite factor = 2
2 × 7 × 137 =
3,836
composite factor = 2 × 7 × 277 =
3,878
composite factor = 31 × 137 =
4,247
This list continues below...
... This list continues from above
composite factor = 2
2 × 7 × 277 =
7,756
composite factor = 2 × 31 × 137 =
8,494
composite factor = 31 × 277 =
8,587
composite factor = 2
2 × 31 × 137 =
16,988
composite factor = 2 × 31 × 277 =
17,174
composite factor = 7 × 31 × 137 =
29,729
composite factor = 2
2 × 31 × 277 =
34,348
composite factor = 137 × 277 =
37,949
composite factor = 2 × 7 × 31 × 137 =
59,458
composite factor = 7 × 31 × 277 =
60,109
composite factor = 2 × 137 × 277 =
75,898
composite factor = 2
2 × 7 × 31 × 137 =
118,916
composite factor = 2 × 7 × 31 × 277 =
120,218
composite factor = 2
2 × 137 × 277 =
151,796
composite factor = 2
2 × 7 × 31 × 277 =
240,436
composite factor = 7 × 137 × 277 =
265,643
composite factor = 2 × 7 × 137 × 277 =
531,286
composite factor = 2
2 × 7 × 137 × 277 =
1,062,572
composite factor = 31 × 137 × 277 =
1,176,419
composite factor = 2 × 31 × 137 × 277 =
2,352,838
composite factor = 2
2 × 31 × 137 × 277 =
4,705,676
composite factor = 7 × 31 × 137 × 277 =
8,234,933
composite factor = 2 × 7 × 31 × 137 × 277 =
16,469,866
composite factor = 2
2 × 7 × 31 × 137 × 277 =
32,939,732
48 factors (divisors)
What times what is 32,939,732?
What number multiplied by what number equals 32,939,732?
All the combinations of any two natural numbers whose product equals 32,939,732.
1 × 32,939,732 = 32,939,732
2 × 16,469,866 = 32,939,732
4 × 8,234,933 = 32,939,732
7 × 4,705,676 = 32,939,732
14 × 2,352,838 = 32,939,732
28 × 1,176,419 = 32,939,732
31 × 1,062,572 = 32,939,732
62 × 531,286 = 32,939,732
124 × 265,643 = 32,939,732
137 × 240,436 = 32,939,732
217 × 151,796 = 32,939,732
274 × 120,218 = 32,939,732
277 × 118,916 = 32,939,732
434 × 75,898 = 32,939,732
548 × 60,109 = 32,939,732
554 × 59,458 = 32,939,732
868 × 37,949 = 32,939,732
959 × 34,348 = 32,939,732
1,108 × 29,729 = 32,939,732
1,918 × 17,174 = 32,939,732
1,939 × 16,988 = 32,939,732
3,836 × 8,587 = 32,939,732
3,878 × 8,494 = 32,939,732
4,247 × 7,756 = 32,939,732
24 unique multiplications The final answer:
(scroll down)