Factors of 245

The factors of 245 are 1, 5, 7, 35, 49, 245. It has 6 factors.

Factors of 245

Pick any whole number from 1 to 10,000.

245 = 5 \times 7^{2}

How to work it out

1
A factor of 245 is a whole number that divides it with nothing left over. You only need to test the numbers up to √245 ≈ 15.65; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 6 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$245 = 5 \times 7^{2}$
4
Add all the factors: 1 + 5 + 7 + 35 + 49 + 245 = 342. Without 245 itself that is 97, so 245 is a deficient number.

LaTeX source of the formulas on this page

\[ 245 = 5 \times 7^{2} \]

What are the factors of 245?

The factors of 245 are 1, 5, 7, 35, 49, 245. It has 6 factors.

What are the prime factors of 245?

5, 7. As a product: 5 × $7^{2}$ .

How many factors does 245 have?

245 has 6 factors (3 factor pairs).

What is the sum of the factors of 245?

342.

Is 245 a prime number?

No. It is divisible by 5, so 245 = 5 × 49.