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SSC MTS 2022 PYQ — Question 71

SSC MTS - 25 July 2022 - Shift 1 • Quantitative Aptitude • Q71

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If A1 and A2 are two distinct prime numbers, then what is the highest common factor of A1 and A2?

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Correct answer: B

Explanation

The correct answer is option 2 i.e. 1.

Since the prime numbers have only 2 factors, 1 and the number itself. 

Therefore,

Factors of A1 are 1 and A1,

And the factors of A2 are 1 and A2.

Therefore,

HCF of A1 and A2 = 1