Question

A and B are two positive integers such that the least prime factor of A is 3 and the least prime factor of B is 5 . Then , find the least prime factor of ( A+ B ) .​

Answer 1

Answer:

8

Step-by-step explanation:

let the no. be 1

3x1 + 5x1 = 8

let the no. be 2

3x2 + 5x2 = 6 + 10 =16

let the no. be 3

3x3 + 5x3 = 9 + 15 = 24

let the no. be n

3xn + 5xn = n(3+5) =8n

                               hence proved