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Search for : (2^x-1)/?


Rank
Probable prime
Digits (> 10000)
Who?
When?
7(2^12720787-1)/1119429257/175573124547437977/84809998784211069913829294Anonymous10/2022
9(2^10443557-1)/372893259948073143811GIMPS-fre_games07/2020
15(2^7313983-1)/3054920802761932201714Oliver Kruse03/2018
16(2^7080247-1)/156822217506727/11283326312536321/96329405483303395932131318Gord Palameta10/2017
24(2^5240707-1)/753928109031577600Tony Prest / Never Odd Or Even07/2016
26(2^4834891-1)/1701881633/706596885755771455425Gord Palameta01/2017
37(2^4187251-1)/722343423715191260475Tony Prest / Never Odd Or Even05/2016
52(2^3464473-1)/6048745082991771042896Anand Nair10/2014
130(2^2327417-1)/23915387348002001700606Anand Nair08/2014
190(2^1790743-1)/(146840927*158358984977*3835546416767873*20752172271489035681)539014Dario Alpern06/2015
233(2^1629469-1)/644908484660139264379223490496Gord Palameta11/2017
330(2^1304983-1)/52199321392832Tony Prest / Never Odd Or Even03/2014
438(2^1168183-1)/54763676838381762583351639Matthias Wurtinger01/2011
552(2^1010623-1)/12602017578957977304212Tony Prest / Never Odd Or Even02/2014
922(2^822971-1)/6583769/28211445881/21255852651726486149207247700Robert Kinser09/2016
1061(2^750151-1)/(429934042631*7590093831289*397764574647511*8361437834787151*17383638888678527263)225744Dario Alpern10/2014
1189(2^696343-1)/11141489/36009913139329209600Tony Prest / Never Odd Or Even02/2014
1216(2^684127-1)/23765203727205933Jens K. Andersen04/2009
1235(2^675977-1)/(1686378749257*7171117283326998925471)203456Dario Alpern07/2015
1640(2^611999-1)/18464214225958267477777390354183184199Dario Alpern06/2017
1911(2^576551-1)/4612409/64758208321/242584327930759173528Dario Alpern06/2014
2651(2^488441-1)/(61543567*30051203516986199)147012Dario Alpern12/2014
3422(2^440399-1)/(16210820281161978209*31518475633*880799)132538Dario Alpern01/2015
3556(2^432457-1)/1672739247834685086279697130159Tony Prest / Never Odd Or Even09/2013
4076(2^406583-1)/813167122388Jens K. Andersen02/2009
11451(2^271549-1)/23874968248781734Jens K. Andersen02/2009
11464(2^271211-1)/61396149515981631Jens K. Andersen02/2009
11522(2^270059-1)/540119/6481417/712497615775672596781265Dario Alpern09/2014
14583(2^221509-1)/29239188166673Jens K. Andersen02/2009
20829(2^175631-1)/330463093135534238072561/9273316952839Robert Kinser03/2017
22794(2^174533-1)/(193594572654550537*91917886778031629891960890057)52494Dario Alpern06/2017
24073(2^173867-1)/5253663750268952326Donovan Johnson06/2005
50953(2^157457-1)/4612545359/35801252162615347376Anonymous07/2016
51724(2^151013-1)/6115779116956185959329997569076945428Robert Kinser11/2016
54181(2^136883-1)/53658136141198Donovan Johnson05/2005
55510(2^130439-1)/26087939261Donovan Johnson05/2005
61099(2^106391-1)/28610517129093110332010Donovan Johnson05/2005
144859(2^87691-1)/80695704016757040839544323326371D.Broadhurst and W.Edgington11/2009
145857(2^86371-1)/4168151292103588725984Donovan Johnson05/2005
146059(2^86137-1)/2002153173020983325095996923166179125896D.Broadhurst and W.Edgington02/2011
148075(2^82939-1)/88332390301254027803357181907324938D.Broadhurst and W.Edgington11/2009
158546(2^87005-1)/(2^17401-1)/3120952Lelio R Paula07/2007
193611(2^70129-1)/(2^3691-1)/52428719995Lelio R Paula12/2007
195179(2^63703-1)/4280841719169Donovan Johnson05/2005
200545(2^58199-1)/23760490171390757705239117497Donovan Johnson05/2005
201621(2^85881-1)/(2^28627-1)/717235Lelio R Paula12/2007
201974(2^57131-1)/6148139611716598326103504272661428872295985663117152D.Broadhurst and W.Edgington09/2009
230046(2^70617-1)/(2^23539-1)/714172Lelio R Paula12/2007
231102(2^69933-1)/(2^23311-1)/714034Lelio R Paula12/2007
243644(2^41521-1)/4160223538202819752861335772445075206508912459D.Broadhurst and W.Edgington09/2010
244093(2^41263-1)/137970714319999161704928612112395Donovan Johnson05/2004
248625(2^42991-1)/(2^3307-1)/819111943Lelio R Paula12/2007

Total : 52 PRP(s)



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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: February, 02 2023 13:22 (Time in France)