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Factors of 45

The factors of 45 are 1, 3, 5, 9, 15, 45. No, 45 is a composite number. Its prime factorization is 3^2 × 5.

Factors of 45
1, 3, 5, 9, 15, 45
Prime or Composite
Composite
Perfect Square
No
Prime Factorization
3^2 × 5
Sum of Factors
78
Factor Pairs
1 × 45 = 45
3 × 15 = 45
5 × 9 = 45

Frequently Asked Questions

What are the factors of 45?

The factors of 45 are 1, 3, 5, 9, 15, 45.

Is 45 a prime number?

No, 45 is a composite number. Its prime factorization is 3^2 × 5.

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