What is 100 in decimal?

100 in octal equals 64 in decimal.

Step-by-step working

DigitPosition8nContribution
126464
0180
0010
Total100₈ = 64 = 64

How it works

Each octal digit of 100 is multiplied by 8 raised to its position (from 0 at the right) and the results are added.

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