Factors of 1218
The factors of 1218 are 1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218. It has 16 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 1218 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1218 ≈ 34.90; 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 2880. Without 1218 itself that is 1662, so 1218 is an abundant number.
LaTeX source of the formulas on this page
\[ 1218 = 2 \times 3 \times 7 \times 29 \]
Factor pairs of 1218
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 1218 | 1 × 1218 = 1218 |
| 2 | 609 | 2 × 609 = 1218 |
| 3 | 406 | 3 × 406 = 1218 |
| 6 | 203 | 6 × 203 = 1218 |
| 7 | 174 | 7 × 174 = 1218 |
| 14 | 87 | 14 × 87 = 1218 |
| 21 | 58 | 21 × 58 = 1218 |
| 29 | 42 | 29 × 42 = 1218 |
Questions
What are the factors of 1218?
The factors of 1218 are 1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218. It has 16 factors.
What are the prime factors of 1218?
2, 3, 7, 29. As a product: 2 × 3 × 7 × 29.
How many factors does 1218 have?
1218 has 16 factors (8 factor pairs).
What is the sum of the factors of 1218?
2880.
Is 1218 a prime number?
No. It is divisible by 2, so 1218 = 2 × 609.