Question

The binary notation of 231 is ___________

(a) (11010111)2

(b) (10111011)2

(c) (11100011)2

(d) (11100111)2

The question was asked by my college director while I was bunking the class.

This intriguing question comes from Integers and Algorithms in division Algorithms of Discrete Mathematics

Answer 1

Right choice is (d) (11100111)2

To elaborate: By binary Expansion of 11100111 is 1*2^0 + 1*2^1 + 1*2^2 + 1*2^5 + 1*2^6 + 1*2^7 is equal to 231.