a and b are two positive such that the least prime factors of a "3" and the least prime factor of b is "5" then the least prime factors of (a+b)
(a)2
(b)3
(c)5
(d)8
with explanation step by step
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Step-by-step explanation:
Given that, a is a positive integer and 3 is the least prime factor of a. 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.
Answered by
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Step-by-step explanation:
Least prime factor being 3 or 5 means that 2 is not a factor. So the numbers are both odd. Odd + odd = even for sure. So for a+b we have 2 as a prime factor.
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