To find all the divisors of the number 33,792:
- 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 33,792:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
33,792 = 210 × 3 × 11
33,792 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 = (10 + 1) × (1 + 1) × (1 + 1) = 11 × 2 × 2 = 44
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 33,792
- 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 = 2
5 =
32
composite factor = 3 × 11 =
33
composite factor = 2
2 × 11 =
44
composite factor = 2
4 × 3 =
48
composite factor = 2
6 =
64
composite factor = 2 × 3 × 11 =
66
composite factor = 2
3 × 11 =
88
composite factor = 2
5 × 3 =
96
composite factor = 2
7 =
128
composite factor = 2
2 × 3 × 11 =
132
composite factor = 2
4 × 11 =
176
This list continues below...
... This list continues from above
composite factor = 2
6 × 3 =
192
composite factor = 2
8 =
256
composite factor = 2
3 × 3 × 11 =
264
composite factor = 2
5 × 11 =
352
composite factor = 2
7 × 3 =
384
composite factor = 2
9 =
512
composite factor = 2
4 × 3 × 11 =
528
composite factor = 2
6 × 11 =
704
composite factor = 2
8 × 3 =
768
composite factor = 2
10 =
1,024
composite factor = 2
5 × 3 × 11 =
1,056
composite factor = 2
7 × 11 =
1,408
composite factor = 2
9 × 3 =
1,536
composite factor = 2
6 × 3 × 11 =
2,112
composite factor = 2
8 × 11 =
2,816
composite factor = 2
10 × 3 =
3,072
composite factor = 2
7 × 3 × 11 =
4,224
composite factor = 2
9 × 11 =
5,632
composite factor = 2
8 × 3 × 11 =
8,448
composite factor = 2
10 × 11 =
11,264
composite factor = 2
9 × 3 × 11 =
16,896
composite factor = 2
10 × 3 × 11 =
33,792
44 factors (divisors)
What times what is 33,792?
What number multiplied by what number equals 33,792?
All the combinations of any two natural numbers whose product equals 33,792.
1 × 33,792 = 33,792
2 × 16,896 = 33,792
3 × 11,264 = 33,792
4 × 8,448 = 33,792
6 × 5,632 = 33,792
8 × 4,224 = 33,792
11 × 3,072 = 33,792
12 × 2,816 = 33,792
16 × 2,112 = 33,792
22 × 1,536 = 33,792
24 × 1,408 = 33,792
32 × 1,056 = 33,792
33 × 1,024 = 33,792
44 × 768 = 33,792
48 × 704 = 33,792
64 × 528 = 33,792
66 × 512 = 33,792
88 × 384 = 33,792
96 × 352 = 33,792
128 × 264 = 33,792
132 × 256 = 33,792
176 × 192 = 33,792
22 unique multiplications The final answer:
(scroll down)