Factors of 64
The factors of 64 are 1, 2, 4, 8, 16, 32, 64. It has 7 factors.
Factors of 64
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 64 is a whole number that divides it with nothing left over. You only need to test the numbers up to √64 ≈ 8.00; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 7 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 + 2 + 4 + 8 + 16 + 32 + 64 = 127. Without 64 itself that is 63, so 64 is a deficient number.
LaTeX source of the formulas on this page
\[ 64 = 2^{6} \]Factor pairs of 64
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 64 | 1 × 64 = 64 |
| 2 | 32 | 2 × 32 = 64 |
| 4 | 16 | 4 × 16 = 64 |
| 8 | 8 | 8 × 8 = 64 |
Questions
What are the factors of 64?
The factors of 64 are 1, 2, 4, 8, 16, 32, 64. It has 7 factors.
What are the prime factors of 64?
2. As a product: .
How many factors does 64 have?
64 has 7 factors (4 factor pairs, one of them 8 × 8).
What is the sum of the factors of 64?
127.
Is 64 a prime number?
No. It is divisible by 2, so 64 = 2 × 32.