Determine the greatest common factor for a variety of whole numbers up to 144, and the lowest common multiple for two and three whole numbers
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
Find the GCF of 12 and 18.
📘 Worked solution
✓6.
And one from the hard end
Find the GCF of 48 and 72.
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
Your Winny Score tracks you as the questions ramp up. Stuck on one? A real Winny Math tutor will walk you through it — first lesson free.
Start practicing