Factor Calculator
Find all factors of a positive integer, count them, sum them, and check if it is prime.
Result
All Factors
Count of Factors
Sum of Factors
Is Prime?
What is a Factor Calculator?
A factor calculator finds all integers that divide a given number evenly (with no remainder). It also counts the factors, sums them, and determines whether the number is prime.
How to Use
- Enter a positive integer up to 1,000,000,000,000 (1e12).
- Click Calculate.
- View the complete list of factors, the total count, the sum, and whether the number is prime.
Frequently Asked Questions
What is a factor?
A factor is a whole number that divides another number exactly, leaving no remainder.
What is the largest number I can use?
This calculator supports positive integers up to 1 trillion (1e12).
How is the sum of factors calculated?
The calculator adds every factor of the number together, including 1 and the number itself.
Is this calculator free?
Yes, BestCalc calculators are completely free and run entirely in your browser.