Using the number 6,435, answer the following questions referring to base 8.
In what place is the 4?
What is the value of the digit 4 in this number?
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The values are powers of 8, increasing for right to left.
8^3 8^2 8^1 8^0
x512 x64 x8 x1
Only base 2, 10 and 16 are of practical value.
Octal, base 8, was used for a while, but there was no good reason for it.