alleryThe HCF of two co-prime numbers is:
A1
B2
C0
Dthe product of the numbers
Answer & Solution
Correct answer: A. 1
1. Co-prime numbers share no common factor other than 1.
2. The highest common factor is therefore that single shared factor.
3. Hence the HCF of two co-prime numbers is 1.
_Source: RRB Group D CEN-02/2018 PYQ, Q.22._
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