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Re:Illegal Prime Number? (2001) by kleiba on Sunday January 07, 2018 @08:38AM (#16090809)
...where k is the decimal representation of the original compressed DeCSS file.

(just for context)

Note the implication: the prime basically is the original program represented as a binary number, then shifted 211 bytes (i.e., 00000000 appended 211 times). Then 99 is added to that number. Note that 99 is representable by a single byte.

Consequenly, if you take that prime number and chop off the last 211 bytes, you end up with the original program.

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