Least common multiple
Least common multiple: formula mcm(a,b) = |a × b| ÷ MCD(a,b), custom inputs and copyable results. Free calculation in your browser.
Enter 2–100 non-negative integers separated by spaces or semicolons, up to 30 digits each. Exact large-integer arithmetic. GCD(0,0)=0 by convention; LCM with zero is zero.
Result
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Formula and instructions
mcm(a,b) = |a × b| ÷ MCD(a,b)
Enter 2–100 non-negative integers separated by spaces or semicolons, up to 30 digits each. Exact large-integer arithmetic. GCD(0,0)=0 by convention; LCM with zero is zero.
Frequently asked questions
Which formula does this tool use?
mcm(a,b) = |a × b| ÷ MCD(a,b) Enter 2–100 non-negative integers separated by spaces or semicolons, up to 30 digits each. Exact large-integer arithmetic. GCD(0,0)=0 by convention; LCM with zero is zero.