GCD/LCM Calculator
Calculate Greatest Common Divisor and Least Common Multiple of numbers.
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Formulas
GCD (Greatest Common Divisor)
The largest number that divides all given numbers without remainder.
GCD(a, b) = GCD(b, a mod b)
LCM (Least Common Multiple)
The smallest positive number divisible by all given numbers.
LCM(a, b) = (a × b) / GCD(a, b)
GCD
12
Greatest Common Divisor
LCM
72
Least Common Multiple
Relationship Verification
24 × 36 = 12 × 72 = 864
a × b = GCD × LCM