LCM & GCD Calculator
Calculate the Least Common Multiple and Greatest Common Divisor of any set of numbers.
GCD (HCF)
6
Greatest Common Divisor
LCM
72
Least Common Multiple
Prime factorization:
12=2 × 2 × 3
18=2 × 3 × 3
24=2 × 2 × 2 × 3
Frequently Asked Questions
What is LCM used for?
LCM (Least Common Multiple) is used to find a common denominator when adding fractions and to align repeating cycles.
What is GCD used for?
GCD (Greatest Common Divisor) simplifies fractions and finds the largest group size for dividing items evenly.