Number Base/Examples/5/56

Example of Number expressed in Base $5$ Notation

The integer expressed in decimal as $56$ is expressed in base $5$ as $211_5$.


Proof

\(\ds 56\) \(=\) \(\ds 2 \times 5^2 + 1 \times 5 + 2\)
\(\ds \) \(=\) \(\ds 50 + 1 + 2\)
\(\ds \) \(=\) \(\ds 211_5\)

$\blacksquare$


Sources

  • 1971: George E. Andrews: Number Theory ... (previous) ... (next): $\text {1-2}$ The Basis Representation Theorem: Exercise $1$
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