Question

The LCM of two prime numbers p and q (p > q) is 221. Find the value of 3p - q.

Options

• 4

• 28

• 38

• 48

Answer 1

38

Explanation:-

LCM of two prime numbers = product of the numbers

221= 13 × 17

So p= 17 and q= 13

⸫ 3p - q = 51 - 13 = 38