Factors of 402
The factors of 402 are 1, 2, 3, 6, 67, 134, 201, 402. It has 8 factors.
Factors of 402
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 402 is a whole number that divides it with nothing left over. You only need to test the numbers up to √402 ≈ 20.05; 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 + 67 + 134 + 201 + 402 = 816. Without 402 itself that is 414, so 402 is an abundant number.
LaTeX source of the formulas on this page
\[ 402 = 2 \times 3 \times 67 \]
Factor pairs of 402
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 402 | 1 × 402 = 402 |
| 2 | 201 | 2 × 201 = 402 |
| 3 | 134 | 3 × 134 = 402 |
| 6 | 67 | 6 × 67 = 402 |
Questions
What are the factors of 402?
The factors of 402 are 1, 2, 3, 6, 67, 134, 201, 402. It has 8 factors.
What are the prime factors of 402?
2, 3, 67. As a product: 2 × 3 × 67.
How many factors does 402 have?
402 has 8 factors (4 factor pairs).
What is the sum of the factors of 402?
816.
Is 402 a prime number?
No. It is divisible by 2, so 402 = 2 × 201.