Convert 21 from octal to binary

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Convert 21 from octal to binary How to convert number 21 from octal to binary?
Octal to: binary decimal hexadecimal

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Octal number

conversion rule

10001

Octal to Binary

Convert 21₈ to binary:
21₈ = 10001₂

octal 21	2	1	step 0
convert to	010	001	step 1
binary 10001 =	10	001	step 2

Octal to binary conversion table

Octal number	Binary number
0	000
1	001
2	010
3	011
4	100
5	101
6	110
7	111

Convert other numbers:

14 15 16 17 20 21 22 23 24 25 26

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