What is the greatest common factor of 24 and 64?

A 4

B 8

C 12

D 36

Correct Answer: Option B

24 = 2 × 2 × 2 × 3
64 = 2 × 2 × 2 × 2 × 2 × 2
সুতরাং, সংখ্যা দুইটির গ.সা.গু 2 × 2 × 2 = 8