Question

Find the GCF (30,45)

Answer 1

15 because both of them are divisible by 15 and that’s the gcf

Answer 2

Hey there! I'm happy to help!

The Greatest Common Factor is self-explanatory: it is the largest factor that both numbers have in common. Let's look at the factors of each of these numbers:

30: 1, 30, 2, 15, 3, 10, 5, 6

45: 1, 45, 3, 15, 5, 9

We see that the largest number they both have in common is 15, so the GCF is 15.

Have a wonderful day! :D