Factors of 1
The factors of 1 are 1. It has 1 factor.
Factors of 1
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 1 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1 ≈ 1.00; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 1 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 = 1. Without 1 itself that is 0, so 1 is neither abundant nor deficient.
Factor pairs of 1
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 1 | 1 × 1 = 1 |
Questions
What are the factors of 1?
The factors of 1 are 1. It has 1 factor.
What are the prime factors of 1?
1 has no prime factors.
How many factors does 1 have?
1 has 1 factors (1 factor pair, one of them 1 × 1).
What is the sum of the factors of 1?
1.
Is 1 a prime number?
No. 1 is neither prime nor composite.