Question

29.
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) will be
(a) 1
(b) 2
(C) 3
(d) 4

Answer 1

Answer:

2

Step-by-step explanation:

Also, b is a positive integer and 5 is the least prime factor of b. Since least prime factor of a is 3, it means that a is an odd number. So, if a is even then 2 is the least prime factor of a. Similarly, b is also an odd number.

Answer 2

Answer:

3 is the right answer any other questions