1's complement of 1011001 is

A)
0101100
B)
0100111
C)
0100110
D)
0110110

Correct Answer : Option (C) :   0100110

Explanation : If you want to calculate 1's complement of any binary number, you need to reverse its binary bits. All the 0's to 1's and 1's to 0's.

Therefore, 1's complement of 1011001 = 0100110

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