Record history for SP2
Primes Type Digits Year Discoverer
2996863034895 • 21290000 ± 1 Tuplet (twin) 388342 2016 Tom Greer, PrimeGrid, TwinGen, LLR
2618163402417 •   21290000 • 2n - 1, n=0, 1 CC, 1st kind (Sophie Germain) 388342 2016 Scott Brown, PrimeGrid, TwinGen, LLR
18543637900515 • 2666667 • 2n - 1, n=0, 1 CC, 1st kind (Sophie Germain) 200701 2012 Philipp Bliedung, PrimeGrid, TwinGen, LLR
3756801695685 • 2666669 ± 1 Tuplet (twin) 200700 2011 Timothy D. Winslow, PrimeGrid, TwinGen, LLR
65516468355 • 2333333 ± 1 Tuplet (twin) 100355 2009 (SG Grid), Peter Kaiser, Keith Klahn,
Twin Prime Search, PrimeGrid, NewPGen, tpsieve, LLR
2003663613 • 2195000 ± 1 Tuplet (twin) 58711 2007 Eric Vautier, Dmitri Gribenko, Patrick W. McKibbon,
Twin Prime Search, PrimeGrid, NewPGen, LLR
137211941292195 • 2171960 • n - 1, n=1, 2 CC, 1st kind (Sophie Germain) 51780 2006 Zoltán Járai, Gabor Farkas, Timea Csajbok, Janos Kasza, Antal Járai
16869987339975 • 2171960 ± 1 Tuplet 51779 2005 Zoltán Járai, Gabor Farkas, Timea Csajbok, Janos Kasza, Antal Járai
33218925 • 2169690 ± 1 Tuplet 51090 2002 Daniel Papp, NewPGen, PRP, Proth.exe
318032361 • 2107001 ± 1 Tuplet 32220 2001 David Underbakke, Phil Carmody, NewPGen, PRP, PrimeForm
1807318575 • 298305 ± 1 Tuplet 29603 2001 David Underbakke, Phil Carmody, NewPGen, PRP, Proth.exe
665551035 • 280025 ± 1 Tuplet 24099 2000 David Underbakke, Phil Carmody, NewPGen, PRP, Proth.exe