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Search for : 2^n+21


Rank
Probable prime
Digits (> 10000)
Who?
When?
6982^1173095+21353137Stefano Morozzi10/2022
57752^376731+21113408Lelio R Paula03/2013
71132^341355+21102759Lelio R Paula08/2011
72332^339168+21102100Lelio R Paula07/2011
165412^216752+2165249Lelio R Paula08/2011
171332^210061+2163235Donovan Johnson06/2006
540042^158497+2147713Donovan Johnson02/2006
568432^139476+2141987Donovan Johnson02/2006
584482^131383+2139551Donovan Johnson02/2006
639472^107287+2132297Donovan Johnson02/2006
1522372^81485+2124530Donovan Johnson04/2004
2537782^38859+2111698Donovan Johnson04/2004
2596142^36551+2111003Donovan Johnson04/2004
2766082^33843+2110188Donovan Johnson04/2004

Total : 14 PRP(s)



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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: April, 28 2024 13:09 (Time in France)