Question

Is 6 a factor of 36r+42?

Answer 1

`36=6\cdot6\\\\42=6\cdot7\\\\36r+42=6\cdot6r+6\cdot7=6\cdot(6r+7)\\\\Answer:\ \boxed{YES}`

Answer 2

6 is a factor

Explanation:

36r+42

36r = 6*6*r

42 = 6*7

6 is a factor of both terms so 6(6r+7)