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Old 2014-05-12, 21:17   #2
Batalov's Avatar
Mar 2008

9,629 Posts

There are a few existing reservations that make one very curious:
222748^3+3^222748 (a 106278 decimal digits PRP by Anatoly Selevich) is reserved by Jens Franke.
Is it that the low value of y=3 makes for a very special case for a ECPP proof?
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