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Record history for k=9

k Primes n's Digits Year Discoverer
9 (65502205462 + 6317280828n)2371#+1 0..8 1014 2012 Ken Davis, Paul Underwood, PrimeForm egroup, NewPGen, PrimeForm
9 (58928599133 + 1298717501n)2371#+1 0..8 1014 2011 Ken Davis, Paul Underwood, PrimeForm egroup, NewPGen, PrimeForm
9 (758144320 + 247707761n)1039#+1 0..8 446 2010 Mike Oakes, NewPGen, PrimeForm
9 (190556231 + 138880294n)997#+1 0..8 425 2009 Ken Davis, NewPGen, PrimeForm
9 (805227062 + 54790161n)941#+1 0..8 401 2006 Mike Oakes, NewPGen, PrimeForm
9 (582170448 + 7977192n)757#+1 0..8 325 2006 Jens Kruse Andersen
9 (20475784 + 18458425n)701#+1 0..8 301 2006 Mike Oakes, APSieve, PrimeForm
9 (105628556 + 7914782n)499#+1 0..8 215 2006 Norman Luhn
9 (501788528 + 12970338n)463#+1 1..9 202 2005 Jens Kruse Andersen
925127352416973 199#227229 + x87 + 210n 0..8 101 2004 Hans Rosenthal & Jens Kruse Andersen

Big Constant : x87 = 279872509634587186332039135414046330728180994209092523040703520843811319320930380677867