5th grade math
posted by kaleb .
what is the greatest common factor of this number pair? 24,28
what is the least common multiple of this number pair? 27,36

GCF of 24,28 ..(2*2*2*3, 2*2*7) GCF is 4
LCM of (27,36)..(3*3*3, 2*2*3*3) LCM is 27*4 
10 divided by 975

what is the greatest common factor of this number pair? 24,28 the answer is 4
what is the least common multiple of this number pair? 27,36 the answer is 3 
The gcf of two numbers is 12. Both of these numbers are greater than 12 and both are less than 40. What are the numbers?