Factors of 312
The factors of 312 are 1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312. It has 16 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 312 is a whole number that divides it with nothing left over. You only need to test the numbers up to √312 ≈ 17.66; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 16 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: the sum is 840. Without 312 itself that is 528, so 312 is an abundant number.
LaTeX source of the formulas on this page
\[ 312 = 2^{3} \times 3 \times 13 \]Factor pairs of 312
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 312 | 1 × 312 = 312 |
| 2 | 156 | 2 × 156 = 312 |
| 3 | 104 | 3 × 104 = 312 |
| 4 | 78 | 4 × 78 = 312 |
| 6 | 52 | 6 × 52 = 312 |
| 8 | 39 | 8 × 39 = 312 |
| 12 | 26 | 12 × 26 = 312 |
| 13 | 24 | 13 × 24 = 312 |
Questions
What are the factors of 312?
The factors of 312 are 1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312. It has 16 factors.
What are the prime factors of 312?
2, 3, 13. As a product: × 3 × 13.
How many factors does 312 have?
312 has 16 factors (8 factor pairs).
What is the sum of the factors of 312?
840.
Is 312 a prime number?
No. It is divisible by 2, so 312 = 2 × 156.