LCM and GCF Calculator
Calculate the greatest common factor, least common multiple, and prime factors of multiple integers.
How to use the tool
Enter the requested values and choose a mode or operation when needed. Fields start empty so results always reflect your own data.
For 12, 18, and 24: GCF=6 and LCM=72.
Formula and method
Signs are ignored for LCM, GCF, and factors. Zero is handled explicitly.
MCM(a,b)=|ab|/MCD(a,b)
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