Question

if the least prime factors of two positive integer a and b are 5 and 13 respectively, then the least prime factor of a and b is _________​

Answer 1

Answer:

Hey friend,

The least prime factor of every number is 1

Step-by-step explanation:

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Answer 2

Answer:

If the p.f. of a is 3, then, a is a multiple of 3 then, a=3x . And if the p.f. of b is 5, then, b is a multiple of 5 then, b=5y

A/Q:

a+b=3x+5y

As we know, the sum of two odd numbers is an even number.

Therefore, least p.f. of any even number is 2