Factors of 45 - All 6 Factors & Factor Pairs of 45

Exact Answer

1, 3, 5, 9, 15, 45

Total Factors

Number Type

Composite Number

Smallest / Largest

1 and 45

Sum of Factors

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Step-by-Step Solution: Factors(45) = 1, 3, 5, 9, 15, 45

Step 1

Find All Integers That Divide 45 Evenly

Test integers from 1 up to √45 (6.71). Every divisor with remainder 0 gives a factor pair of 45.

Factors of 45: 1, 3, 5, 9, 15, 45

Summary & Alternative Representations

Property / Format	Value
Total Factors	`6`
Number Type	`Composite Number`
Smallest / Largest	`1 and 45`
Sum of Factors	`78`

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Frequently Asked Questions

How many factors does 45 have?

45 has 6 positive factors: 1, 3, 5, 9, 15, 45.

Is 45 a prime number?

No, 45 is a composite number with 6 factors.