Factors of 9921

The factors of 9921 are 1, 3, 3307, 9921. It has 4 factors.

Factors of 9921

Pick any whole number from 1 to 10,000.

9921 = 3 \times 3307

How to work it out

1
A factor of 9921 is a whole number that divides it with nothing left over. You only need to test the numbers up to √9921 ≈ 99.60; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 4 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$9921 = 3 \times 3307$
4
Add all the factors: 1 + 3 + 3307 + 9921 = 13232. Without 9921 itself that is 3311, so 9921 is a deficient number.

LaTeX source of the formulas on this page

\[ 9921 = 3 \times 3307 \]

Factor	Pairs with	Product
1	9921	1 × 9921 = 9921
3	3307	3 × 3307 = 9921

What are the factors of 9921?

The factors of 9921 are 1, 3, 3307, 9921. It has 4 factors.

What are the prime factors of 9921?

3, 3307. As a product: 3 × 3307.

How many factors does 9921 have?

9921 has 4 factors (2 factor pairs).

What is the sum of the factors of 9921?

13232.

Is 9921 a prime number?

No. It is divisible by 3, so 9921 = 3 × 3307.