Factors of 49
The factors of 49 are 1, 7, 49. It has 3 factors.
Factors of 49
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 49 is a whole number that divides it with nothing left over. You only need to test the numbers up to √49 ≈ 7.00; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 3 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 + 7 + 49 = 57. Without 49 itself that is 8, so 49 is a deficient number.
LaTeX source of the formulas on this page
\[ 49 = 7^{2} \]Factor pairs of 49
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 49 | 1 × 49 = 49 |
| 7 | 7 | 7 × 7 = 49 |
Questions
What are the factors of 49?
The factors of 49 are 1, 7, 49. It has 3 factors.
What are the prime factors of 49?
7. As a product: .
How many factors does 49 have?
49 has 3 factors (2 factor pairs, one of them 7 × 7).
What is the sum of the factors of 49?
57.
Is 49 a prime number?
No. It is divisible by 7, so 49 = 7 × 7.