Factors of 321
The factors of 321 are 1, 3, 107, 321. It has 4 factors.
Factors of 321
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 321 is a whole number that divides it with nothing left over. You only need to test the numbers up to ā321 ā 17.92; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 4 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 + 3 + 107 + 321 = 432. Without 321 itself that is 111, so 321 is a deficient number.
LaTeX source of the formulas on this page
\[ 321 = 3 \times 107 \]
Factor pairs of 321
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 321 | 1 Ć 321 = 321 |
| 3 | 107 | 3 Ć 107 = 321 |
Questions
What are the factors of 321?
The factors of 321 are 1, 3, 107, 321. It has 4 factors.
What are the prime factors of 321?
3, 107. As a product: 3 Ć 107.
How many factors does 321 have?
321 has 4 factors (2 factor pairs).
What is the sum of the factors of 321?
432.
Is 321 a prime number?
No. It is divisible by 3, so 321 = 3 Ć 107.