Digital Root/Examples/10010111101 Base 2
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Examples of Digital Roots
In binary notation, we have:
\(\ds \map {s_2} {10010111101_2}\) | \(=\) | \(\ds 1 + 0 + 0 + 1 + 0 + 1 + 1 + 1 + 1 + 0 + 1\) | \(\ds = 7 = 111_2\) | |||||||||||
\(\ds \map {s_2} {111_2}\) | \(=\) | \(\ds 1 + 1 + 1\) | \(\ds = 3 = 11_2\) | |||||||||||
\(\ds \map {s_2} {11_2}\) | \(=\) | \(\ds 1 + 1\) | \(\ds = 2 = 10_2\) | |||||||||||
\(\ds \map {s_2} {10_2}\) | \(=\) | \(\ds 1 + 0\) | \(\ds = 1 = 1_2\) |
It is pretty obvious that the digital root of any non-zero number in base $2$ is always $1$.