a&b are 2 positive integers that the least prime factor of a is 3 and the least prime factor of b is 5 .then calculate the least prime factor of (a+b)
Answers
Answered by
1
If a is having least prime factor as 3 it means a is an odd no.
Similarly if b is having the least prime factor as 5 then it is also an odd no.
We know that odd +odd =even .
Therefore, a+b is even.
Then least prime factor of a+b is 2
Similarly if b is having the least prime factor as 5 then it is also an odd no.
We know that odd +odd =even .
Therefore, a+b is even.
Then least prime factor of a+b is 2
Similar questions