Math, asked by hemantparihar, 10 months ago

if least prime factor of a 3 and the least prime factor of a and 7 is the least prime factor of b then the least prime factor of (a +b ) is .​

Answers

Answered by Soubhagi
19

Answer:

Since 3 is a least prime factor of a, we can say that a is odd. Similarly, 7 is the least prime factor of b, making it odd too. So the sum a+b is even and hence it's least prime factor is 2.

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