11 in binary
11 in binary is 1011. In hexadecimal it is B and in octal 13.
11 in binary
Pick any whole number from 1 to 10,000.
How to work it out
- 1
Divide 11 by 2 again and again, writing down the remainder each time, until you reach 0.
- 2
Read the remainders from the bottom up: 1011.
- 3
Check by adding powers of 2: 8 + 2 + 1 = 11.
LaTeX source of the formulas on this page
\[ 11_{10} = 1011_{2} \]Dividing 11 by 2
| Number | Division | Remainder |
|---|---|---|
| 11 | 11 ÷ 2 = 5 | 1 |
| 5 | 5 ÷ 2 = 2 | 1 |
| 2 | 2 ÷ 2 = 1 | 0 |
| 1 | 1 ÷ 2 = 0 | 1 |
Questions
What is 11 in binary?
1011.
What is 11 in hexadecimal?
B.
What is 11 in octal?
13.
How many bits does 11 need?
4 bits.