Factors of 2640
The factors of 2640 are 1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640. It has 40 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 2640 is a whole number that divides it with nothing left over. You only need to test the numbers up to √2640 ≈ 51.38; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 40 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: the sum is 8928. Without 2640 itself that is 6288, so 2640 is an abundant number.
LaTeX source of the formulas on this page
\[ 2640 = 2^{4} \times 3 \times 5 \times 11 \]Factor pairs of 2640
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 2640 | 1 × 2640 = 2640 |
| 2 | 1320 | 2 × 1320 = 2640 |
| 3 | 880 | 3 × 880 = 2640 |
| 4 | 660 | 4 × 660 = 2640 |
| 5 | 528 | 5 × 528 = 2640 |
| 6 | 440 | 6 × 440 = 2640 |
| 8 | 330 | 8 × 330 = 2640 |
| 10 | 264 | 10 × 264 = 2640 |
| 11 | 240 | 11 × 240 = 2640 |
| 12 | 220 | 12 × 220 = 2640 |
| 15 | 176 | 15 × 176 = 2640 |
| 16 | 165 | 16 × 165 = 2640 |
| 20 | 132 | 20 × 132 = 2640 |
| 22 | 120 | 22 × 120 = 2640 |
| 24 | 110 | 24 × 110 = 2640 |
| 30 | 88 | 30 × 88 = 2640 |
| 33 | 80 | 33 × 80 = 2640 |
| 40 | 66 | 40 × 66 = 2640 |
| 44 | 60 | 44 × 60 = 2640 |
| 48 | 55 | 48 × 55 = 2640 |
Questions
What are the factors of 2640?
The factors of 2640 are 1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640. It has 40 factors.
What are the prime factors of 2640?
2, 3, 5, 11. As a product: × 3 × 5 × 11.
How many factors does 2640 have?
2640 has 40 factors (20 factor pairs).
What is the sum of the factors of 2640?
8928.
Is 2640 a prime number?
No. It is divisible by 2, so 2640 = 2 × 1320.