Question

If 3 is the least prime factor of a number p and 7 is the least prime factor of a number q, then
least prime factor of p + q is ___________
(a) 3 (b) 7 (c) 2 (d) 5​

Answer 1

Answer:

The answer would be

c) 2.

Both the numbers do not have 2 as prime factor , so both p and q are odd.

Adding two odd numbers always gives even number i.e., multiple of 2.

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