Calculate the greatest common factor (GCD) of two or more numbers
Enter two or more positive integers to find their greatest common factor. The GCF is the largest positive integer that divides each number without a remainder.
Enter two or more positive integers separated by commas or spaces
Click on any example to load it into the calculator
Find GCF of two small numbers
Numbers: 12, 18
Calculate GCF of three different numbers
Numbers: 24, 36, 48
Find GCF of larger integers
Numbers: 252, 198
GCF of four different numbers
Numbers: 60, 84, 90, 120