GCF / LCM Calculator
Calculate Greatest Common Factor and Least Common Multiple.
Results
GCF (Greatest Common Factor):
LCM (Least Common Multiple):
What is this Online GCF / LCM Calculator for?
This tool calculates two important properties of a pair of numbers: the Greatest Common Factor (GCF) and the Least Common Multiple (LCM).
How does it work?
It uses the Euclidean algorithm to find the GCF. The LCM is then calculated using the formula: LCM(a, b) = |a * b| / GCF(a, b).