compute the primitive root of a word
PrimitiveRoot( w )
The PrimitiveRoot(w) command computes the primitive root of the word (string) w. The primitive root of w is the string r of minimal length for which there is a positive integer e such that w = Repeat( r, e ). That is, r is the smallest root of which w is a power.
All of the StringTools package commands treat strings as (null-terminated) sequences of 8-bit (ASCII) characters. Thus, there is no support for multibyte character encodings, such as unicode encodings.
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