Factors of 421
The factors of 421 are 1, 421. It has 2 factors.
Factors of 421
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 421 is a whole number that divides it with nothing left over. You only need to test the numbers up to √421 ≈ 20.52; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 2 factors.
- 3
421 has no factors besides 1 and itself, so it is a prime number.
- 4
Add all the factors: 1 + 421 = 422. Without 421 itself that is 1, so 421 is a deficient number.
LaTeX source of the formulas on this page
\[ 421 = 421 \]
Factor pairs of 421
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 421 | 1 × 421 = 421 |
Questions
What are the factors of 421?
The factors of 421 are 1, 421. It has 2 factors.
What are the prime factors of 421?
421. As a product: 421.
How many factors does 421 have?
421 has 2 factors (1 factor pair).
What is the sum of the factors of 421?
422.
Is 421 a prime number?
Yes. Its only factors are 1 and 421.