Free · Grade 6 · 2 or 3 numbers

Least common multiple worksheets

Working on least common multiple? Print this sheet as it is, or change the level and questions first.

  • Answer key included
  • Reopen this exact sheet
  • Letter & A4 ready
Ready to printLeast common multiple
Least common multiple worksheet — 2 or 3 numbers, free printable with answer key

The answer key prints on a separate page.

What's on this sheet

Each set is built to share a common factor, so the least common multiple is genuinely smaller than the product — the practice trains a child to divide out the common factor rather than just multiply the numbers together. Answers are kept to a sensible size for grades five and six so the arithmetic stays reasonable while the idea comes into focus. Choose two numbers or three, and set the range with the level control.

Why this sheet works

Like the GCF sheet, the instruction is stated once at the top and each row is compact — 4, 6 → LCM = __ — so a whole page reads cleanly instead of repeating one sentence. The answer key prints the least common multiple for every set on a separate page.