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(10^237-1) - 2*10^118 == ID:B280100BEEF2E ============================================= PRIMO 1.2.1 - Primality Certificate ----------------------------------------------------------------- Candidate ----------------------------------------------------------------- N = 999999999999999999999999999999999999999999999999999999999999\ 999999999999999999999999999999999999999999999999999999999979\ 999999999999999999999999999999999999999999999999999999999999\ 999999999999999999999999999999999999999999999999999999999 Decimal size = 237 Binary size = 788 Started 10/14/2002 03:28:33 AM Running time 11s Candidate certified prime ================================================================= Proved prime with 'Primo 1.2.1' by Patrick De Geest using a Pentium III 650 MHz chip.
(10^290253-1) - 2*10^145126 by Darren Bedwell http://primes.utm.edu/primes/page.php?id=106219 http://zerosink.blogspot.com/2012/04/new-world-record-near-repdigit.html