Definition:Sophie Germain Prime/Largest Known
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Largest Known Sophie Germain Primes
The largest known Sophie Germain primes (as of May 2017) are as follows:
Sophie Germain prime | Number of digits | Date discovered | Discovered by |
---|---|---|---|
$137211941292195 \times 2^{171960} - 1$ | $51780$ | 3rd May 2006 | Zoltán Járai, Gabor Farkas, Timea Csajbok, János Kasza and Antal Járai |
$48047305725 \times 2^{172403} - 1$ | $51910$ | 25th January 2007 | David Underbakke |
$607095 \times 2^{176311} - 1$ | $53081$ | 18th September 2009 | Tom Wu |
$99064503957 \times 2^{200008} - 1$ | $60220$ | April 2016 | S. Urushihata |
$620366307356565 \times 2^{253824} - 1$ | $76424$ | 2nd November 2009 | Zoltán Járai, Gabor Farkas, Timea Csajbok, János Kasza and Antal Járai |
$648621027630345 \times 2^{253824} - 1$ | $76424$ | 2nd November 2009 | Zoltán Járai, Gabor Farkas, Timea Csajbok, János Kasza and Antal Járai |
$183027 \times 2^{265440} - 1$ | $79911$ | 22nd March 2010 | Tom Wu |
$18543637900515 \times 2^{666667} - 1$ | $200701$ | April 2012 | Philipp Bliedung |
$2618163402417 \times 2^{1290000} - 1$ | $388342$ | February 2016 | James Scott Brown |