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🔢 LCM Calculator (Least Common Multiple)
Enter Numbers (separated by commas)
Enter positive integers only (min 2 numbers)
Calculation Method
Prime Factorization
GCD Method (LCM(a,b) = |a×b|/GCD(a,b))
Show Prime Factorization
Calculate LCM
Result
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Prime Factorization:
Quick Examples:
LCM(12, 18)
LCM(5, 7, 10)
LCM(8,12,16,24)
Notes:
LCM is the smallest positive integer divisible by all input numbers
For two numbers: LCM(a,b) = (a × b) / GCD(a,b)
For multiple numbers: LCM(a,b,c) = LCM(LCM(a,b),c)
Prime factorization method: take highest power of each prime factor