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a and b are two positive integers such that the least prime factor of a is 3 and least prime factor of B is 5 then calculate the least prime factor of a + b

Posted by Khadija Fatima 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

The least prime factor of a and b is not 2, hence both are odd numbers.
Hence( a+b) is an even number.
So least common factor of( a+b ) is 2.

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