Factors of 2139
The factors of 2139 are 1, 3, 23, 31, 69, 93, 713, 2139. It has 8 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 2139 is a whole number that divides it with nothing left over. You only need to test the numbers up to √2139 ≈ 46.25; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 8 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 + 3 + 23 + 31 + 69 + 93 + 713 + 2139 = 3072. Without 2139 itself that is 933, so 2139 is a deficient number.
LaTeX source of the formulas on this page
\[ 2139 = 3 \times 23 \times 31 \]
Factor pairs of 2139
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 2139 | 1 × 2139 = 2139 |
| 3 | 713 | 3 × 713 = 2139 |
| 23 | 93 | 23 × 93 = 2139 |
| 31 | 69 | 31 × 69 = 2139 |
Questions
What are the factors of 2139?
The factors of 2139 are 1, 3, 23, 31, 69, 93, 713, 2139. It has 8 factors.
What are the prime factors of 2139?
3, 23, 31. As a product: 3 × 23 × 31.
How many factors does 2139 have?
2139 has 8 factors (4 factor pairs).
What is the sum of the factors of 2139?
3072.
Is 2139 a prime number?
No. It is divisible by 3, so 2139 = 3 × 713.