Enter a number to calculate all factors/divisors and check if it is prime.
Factors:
Total Factors:
Prime?
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About Factor Calculator

A factor calculator finds all divisors of a number, counts them, and checks if the number is prime. Useful in math, science, and education.

How It Works

The tool iterates from 1 to the number itself and collects all numbers that divide evenly. It also checks primality by counting divisors.

Advice

Only enter positive integers. Large numbers may take a few seconds to compute.

FAQs

Can I enter decimals? No, only integers.
Is zero allowed? Zero has infinite factors, please avoid.
Can negative numbers be used? Only positive integers are supported.