If N = 23×34 , M = 22×3×5, then find the number of factors of N that are common with the factors of M. Pick.
A) 3 B) 9 C) 8 D) 6 E) 2
Answer: c   Explanation:   N = 23×34   M = 22×3×5   By taking common powers we get 22×3   So common factors = (2 + 1)(1 + 1) = 6.   (formula for number of factors of a number)   Answer:6
<result>D</result>
If N = 23×34 , M = 22×3×5, then find the number of factors of N that are common with the factors of M.