For the answer to the question above, the GCF is the greatest factor that divides two numbers.
For 36 the possible GCFs are 36, 18, 12, 9, 6, 4, 3, 2, 1.
For 24 the possible GCFs are 24, 12, 8, 6, 4, 3, 2, 1.
For the last number 30 the GCFs are 30, 15, 10, 6, 5, 3, 2, 1.
I hope my answer helped you. Have a nice day!
