Find all factors of a number, discover factor pairs, or calculate the Greatest Common Factor (GCF) of two or more numbers.
Separate multiple numbers with commas. Enter one number to find its factors, or multiple numbers to calculate their GCF.
What Are Factors?
Factors are whole numbers that divide evenly into another number without leaving a remainder. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.
What Is the Greatest Common Factor?
The Greatest Common Factor (GCF) is the largest positive whole number that divides evenly into two or more numbers.
For example, the GCF of 24 and 36 is 12.