Factor Calculator
List every factor and factor pair of a number and its prime factorization.
Enter your values to see the result.
Continue your work
- GCF & HCF Calculator — Find factors shared by several numbers.
- Square Root Calculator — Find the square root.
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Clear instructions
Find steps, examples and limitations below.
Use online
Open the tool in a supported web browser.
Free to use
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How to use the Factor Calculator
List every factor and factor pair of a number and its prime factorization.
- 1 Enter a whole number.
- 2 Read the list of factors and whether the number is prime.
- 3 Open the factor pairs table for multiplications that give the number.
Example and practical tips
360 has 24 factors and a prime factorization of 2³ × 3² × 5, which is why it divides so neatly into degrees of a circle.
Frequently asked questions
What is a prime number?
A number greater than 1 whose only factors are 1 and itself, such as 2, 3, 5 and 7.
What is a perfect number?
A number equal to the sum of its factors other than itself, such as 6 = 1 + 2 + 3.
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