JAMB 1993 · UME · Q1

Number bases

Change $71_{10}$ to base 8.

Worked solution (try it first)

Divide by 8: $71 \div 8 = 8$ remainder 7.
Divide again: $8 \div 8 = 1$ remainder 0, and $1 \div 8 = 0$ remainder 1.
Read the remainders from the bottom up: $107_8$ , option A.

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