Decimal number 139 will be written in binary numbers as ______?
- 10011001
- 10001011
- 10010111
- None of these
Explanation
To convert the decimal number 139 to binary:
139 ÷ 2 = 69 remainder 1
69 ÷ 2 = 34 remainder 1
34 ÷ 2 = 17 remainder 0
17 ÷ 2 = 8 remainder 1
8 ÷ 2 = 4 remainder 0
4 ÷ 2 = 2 remainder 0
2 ÷ 2 = 1 remainder 0
1 ÷ 2 = 0 remainder 1
Reading the remainders from bottom to top:
10001011
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