Build equal groups first
Select at least one divisibility rule that you think applies to BOTH bottom numbers.
Choose a divisibility rule
Select at least one rule that applies to BOTH bottom numbers. The tool will not show which rules work before you choose.
The ladder
24
36
Choose a rule
What you have earned

Every divisor you pull out lands here. Together they will build the GCF.

?GCF
?LCM