Factors of 978
The factors of 978 are 1, 2, 3, 6, 163, 326, 489, 978. It has 8 factors.
Factors of 978
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 978 is a whole number that divides it with nothing left over. You only need to test the numbers up to √978 ≈ 31.27; 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 + 2 + 3 + 6 + 163 + 326 + 489 + 978 = 1968. Without 978 itself that is 990, so 978 is an abundant number.
LaTeX source of the formulas on this page
\[ 978 = 2 \times 3 \times 163 \]
Factor pairs of 978
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 978 | 1 × 978 = 978 |
| 2 | 489 | 2 × 489 = 978 |
| 3 | 326 | 3 × 326 = 978 |
| 6 | 163 | 6 × 163 = 978 |
Questions
What are the factors of 978?
The factors of 978 are 1, 2, 3, 6, 163, 326, 489, 978. It has 8 factors.
What are the prime factors of 978?
2, 3, 163. As a product: 2 × 3 × 163.
How many factors does 978 have?
978 has 8 factors (4 factor pairs).
What is the sum of the factors of 978?
1968.
Is 978 a prime number?
No. It is divisible by 2, so 978 = 2 × 489.