Question

Find the GCD and the LCM for each of the following using the intersection-of-sets method:
A. 18 and 10
B. 24 and 36
C. 8,24, and 52
D. 7 and 9

Answer 1

im not sure what method that would be, but it might include prime factorizations

Answer 2

GCD is the intersection, or the prime factors they have in common

LCM is the union, or inclusion of all the prime factors

Answer 3

18 = {2,3,3}
10 = {2,5}

GCD = 2, LCM = 2,3,3,5 (90)