Factors of 27
The factors of 27 are 1, 3, 9, 27. It has 4 factors.
Factors of 27
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 27 is a whole number that divides it with nothing left over. You only need to test the numbers up to √27 ≈ 5.20; 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 + 9 + 27 = 40. Without 27 itself that is 13, so 27 is a deficient number.
LaTeX source of the formulas on this page
\[ 27 = 3^{3} \]Factor pairs of 27
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 27 | 1 × 27 = 27 |
| 3 | 9 | 3 × 9 = 27 |
Questions
What are the factors of 27?
The factors of 27 are 1, 3, 9, 27. It has 4 factors.
What are the prime factors of 27?
3. As a product: .
How many factors does 27 have?
27 has 4 factors (2 factor pairs).
What is the sum of the factors of 27?
40.
Is 27 a prime number?
No. It is divisible by 3, so 27 = 3 × 9.