Could somebody answer this Thank you Could somebody answer t

Could somebody answer this?

Thank you

Could somebody answer this? B. Properties of the gcd Prove the following, for any integers a, b, and c. For each of these problems, you will need Only the definition of the gcd. #1 If a > 0 and a | b, then gcd(a, b) =a.

Solution

a|b means b=k* a for some integer k

gcd(a,k*a)=a* gcd(1,k)= a