Multiple choice

Which of these binary numbers is same as its 2's compliment?

  1. 11111110

  2. 11111111

  3. 10000000

  4. 10101001

  5. 10101010

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The 1's complement of 10000000 is 01111111, adding 1 to it, gives 10000000 as its 2's complement. This is the same as the given number.