1)Find the largest integer n for which 12^n evenly divides 20! .
PLease help!
I just lined up the numbers 1 to 20 and factored each one
(only prime factors have importance for example 8=2*2*2)
All the prime factors except 3 and 2 can be ignored.
How many factors are 3 how many are 2?
Can you do it now?
+117 
