Factors of 18 - All 6 Factors & Factor Pairs of 18

Exact Answer

1, 2, 3, 6, 9, 18

Total Factors

Number Type

Composite Number

Smallest / Largest

1 and 18

Sum of Factors

Reduce / Convert Fraction:

Convert Fraction:

Enter Decimal Number:

Enter Percentage: %

What is % of

From Value: To Value:

Simplify Ratio: :

First Number: Second Number:

Find All Factors of:

Dividend: ÷ Divisor:

√ Square Root of: OR Power (x^y): ^{^}

x² + x + = 0

Number (n! & log):

Circle Radius (r):

Side a: Side b:

Angle (Degrees): °

Numbers (comma separated):

Total Items (n): Choose (r):

Decimal Number:

Number (1–3999):

Step-by-Step Solution: Factors(18) = 1, 2, 3, 6, 9, 18

Step 1

Find All Integers That Divide 18 Evenly

Test integers from 1 up to √18 (4.24). Every divisor with remainder 0 gives a factor pair of 18.

Factors of 18: 1, 2, 3, 6, 9, 18

Summary & Alternative Representations

Property / Format	Value
Total Factors	`6`
Number Type	`Composite Number`
Smallest / Largest	`1 and 18`
Sum of Factors	`39`

Was this solution helpful?

Help us improve our free step-by-step tools

Frequently Asked Questions

How many factors does 18 have?

18 has 6 positive factors: 1, 2, 3, 6, 9, 18.

Is 18 a prime number?

No, 18 is a composite number with 6 factors.