Correct Answer: (a) 2
Explanation:
5 + 3 = 8, the least prime factor of a + b has to be 2, unless a + b is a prime number greater than 2.
If 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, the least prime factor of (a + b) is (a) 2 (b) 3 (c) 5 (d) 8
If 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, the least prime factor of (a + b) is (a) 2 (b) 3 (c) 5 (d) 8