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The Number 255: Properties and MeaningsPrime Factors of 255=3x3x17.
255 is a 27-gonal Number.
255 is an 86-gonal Number.
255 is a Mersenne Number.
The Year 255 ADSt. Helen was born of pagan parents in the year 255 A.D. She was the mother of the Emperor Constantine the I.
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