Factors of 72
72 has 12 factors.
All factors of 72
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
Prime factorization: 2³ × 3²
Number of factors
12
Sum of factors
195
Prime?
No
Factor pairs of 72
Each pair multiplies together to make 72:
| Pair | Product |
|---|---|
| 1 × 72 | 72 |
| 2 × 36 | 72 |
| 3 × 24 | 72 |
| 4 × 18 | 72 |
| 6 × 12 | 72 |
| 8 × 9 | 72 |
Factors of nearby numbers
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Frequently asked questions
What are the factors of 72?+
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 — that is 12 factors in total.
What is the prime factorization of 72?+
The prime factorization of 72 is 2³ × 3².
Is 72 a prime number?+
No. 72 has 12 factors, more than just 1 and itself, so it is a composite number.