Find the Greatest Common Factor (GCF) — also called HCF or GCD — of two or more numbers with prime factorization.
The Greatest Common Factor (GCF) is the largest number that divides two or more numbers evenly. Also called GCD or HCF.
GCF is used to simplify fractions, solve ratio problems, and find common denominators in arithmetic.
Enter two or more numbers separated by commas and click Find GCF.
GCF(48, 36, 24) = 12 because 12 is the largest number that divides all three evenly.