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.
More Number Theory
- Factor Calculator (look up any number)
- GCF Calculator
- LCM Calculator
- LCD Calculator