functions
LCM / GCF Calculator
Find the LCM and GCF.
Least common multiple and greatest common factor, for two or more numbers. Free, no signup.
Frequently Asked Questions
GCF (greatest common factor) is the largest number that divides evenly into all your numbers. LCM (least common multiple) is the smallest number that all your numbers divide evenly into.
Yes, enter as many positive whole numbers as you need, separated by commas or spaces.