45
15,3
5,3,3
You break it down step by step. First, what two numbers can be multiplied together to get 45? We'll do 9 and 5. 5 is prime, so it can't be broken down any further.
But 9 can! 3 x 3
So now what you have left is 3 x 3 x 5 AKA 32 x 5
45 15,3 5,3,3
45 5, 9 5, 3, 3
279,33,3,34515,35,3,33 x 3 = 9, the GCF
No, but 5 is a factor of 45.
IT IS PRIME there is no factor tree
Because 45 is not a factor of 60.
45 15,3 5,3,3
45 15,3 5,3,3
Use a factor tree. 45 15,3 5,3,3
45 15,3 5,3,3
45 15,3 5,3,3
45 doesn't divide into 60 evenly.
45 15,3 5,3,3
15,3 3,5,3
Because 45 is not a factor of 60.
45 doesn't divide into 60 evenly.
Use a factor tree. 45 15,3 5,3,3