To find all the divisors of the number 32,208:
- 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 32,208:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
32,208 = 24 × 3 × 11 × 61
32,208 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 32,208
- 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
prime factor =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 2
4 =
16
composite factor = 2 × 11 =
22
composite factor = 2
3 × 3 =
24
composite factor = 3 × 11 =
33
composite factor = 2
2 × 11 =
44
composite factor = 2
4 × 3 =
48
prime factor =
61
composite factor = 2 × 3 × 11 =
66
composite factor = 2
3 × 11 =
88
composite factor = 2 × 61 =
122
composite factor = 2
2 × 3 × 11 =
132
composite factor = 2
4 × 11 =
176
This list continues below...
... This list continues from above
composite factor = 3 × 61 =
183
composite factor = 2
2 × 61 =
244
composite factor = 2
3 × 3 × 11 =
264
composite factor = 2 × 3 × 61 =
366
composite factor = 2
3 × 61 =
488
composite factor = 2
4 × 3 × 11 =
528
composite factor = 11 × 61 =
671
composite factor = 2
2 × 3 × 61 =
732
composite factor = 2
4 × 61 =
976
composite factor = 2 × 11 × 61 =
1,342
composite factor = 2
3 × 3 × 61 =
1,464
composite factor = 3 × 11 × 61 =
2,013
composite factor = 2
2 × 11 × 61 =
2,684
composite factor = 2
4 × 3 × 61 =
2,928
composite factor = 2 × 3 × 11 × 61 =
4,026
composite factor = 2
3 × 11 × 61 =
5,368
composite factor = 2
2 × 3 × 11 × 61 =
8,052
composite factor = 2
4 × 11 × 61 =
10,736
composite factor = 2
3 × 3 × 11 × 61 =
16,104
composite factor = 2
4 × 3 × 11 × 61 =
32,208
40 factors (divisors)
What times what is 32,208?
What number multiplied by what number equals 32,208?
All the combinations of any two natural numbers whose product equals 32,208.
1 × 32,208 = 32,208
2 × 16,104 = 32,208
3 × 10,736 = 32,208
4 × 8,052 = 32,208
6 × 5,368 = 32,208
8 × 4,026 = 32,208
11 × 2,928 = 32,208
12 × 2,684 = 32,208
16 × 2,013 = 32,208
22 × 1,464 = 32,208
24 × 1,342 = 32,208
33 × 976 = 32,208
44 × 732 = 32,208
48 × 671 = 32,208
61 × 528 = 32,208
66 × 488 = 32,208
88 × 366 = 32,208
122 × 264 = 32,208
132 × 244 = 32,208
176 × 183 = 32,208
20 unique multiplications The final answer:
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