alleryThe HCF of 156, 312 and 195 is:
A3
B39
C78
D13
Answer & Solution
Correct answer: B. 39
1. 156 = 2^2 x 3 x 13, 312 = 2^3 x 3 x 13, 195 = 3 x 5 x 13.
2. Common factors are 3 and 13.
3. HCF = 3 x 13 = 39.
_Source: RRB Group D CEN-02/2018 PYQ, Q.64._
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