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Record history for k=6
k Primes Type Digits Year Discoverer
623700 + 33888977692820810260792517451 + d, d = 0, 4, 6, 10, 12, 16 Tuplet 1114 2021 Vidar Nakling, Primo, Sixfinder
6 28993093368077 · 2399# + 19417 + 0, 4, 6, 10, 12, 16 Tuplet 1037 2016 Norman Luhn, Primo
6 2799873605326 · 2371# · 2n - 1, n=0..5 CC, 1st kind 1016 2015 Serge Batalov, NewPGen, PrimeForm
6 x279 · 1013# + 6503587 + 0,4,6,10,12,16 Tuplet 700 2015 Vidar Nakling, Primo
6 x586 · 173# + 16057 + 0,4,6,10,12,16 Tuplet 654 2014 Riecoin, Primo
6 480112483568 · 1511# · 2n + 1, n=0..5 CC, 2nd kind 651 2014 Oscar Östlin, NewPGen, PrimeForm
6 37488065464 · 1483# · 2n - 1, n=0..5 CC, 1st kind 634 2010 Dirk Augustin, NewPGen, PrimeForm
6 601545895935 · 1300# + 43777 + 0,4,6,10,12,16 Tuplet 559 2009 Norman Luhn
6 37783362904 · 1097# · 2n + 1, n=0..5 CC, 2nd kind 475 2006 Dirk Augustin, NewPGen, PrimeForm
6 328481121285 · 1000# + 16057 + 0,4,6,10,12,16 Tuplet 427 2006 Norman Luhn
6 33692909611 · 977# · 2n - 1, n=0..5 CC, 1st kind 418 2004 Dirk Augustin, NewPGen, PrimeForm
6 44770344615 · 859# + 1204600427 + 30n, n=0..5 CPAP 370 2003 Jens K. Andersen, Jim Fougeron, Primo
6 2121022995 · 859# + 1204600427 + 30n, n=0..5 CPAP 369 2003 Jim Fougeron, VFYPR
6 124605675 · 719# · 2n ± 1, n=3..5 BiTwin 308 2002 Dirk Augustin
6 110282080125 · 700# + 6005887 + 0,4,6,10,12,16 Tuplet 301 2001 Norman Luhn, Primo