PrimeGrid Riesel base 5

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Purpose

Finding primes for the Riesel base 5 problem.

Current status

• Status

k-values left

There are 52 values:

• 4906
• 23906
• 26222
• 35248
• 68132
• 71146
• 76354
• 81134
• 92936
• 102952
• 109238
• 109862
• 127174
• 131848
• 134266
• 143632
• 145462
• 145484
• 146756
• 147844
• 151042
• 152428
• 154844
• 159388
• 164852
• 170386
• 170908
• 182398
• 187916
• 189766
• 190334
• 195872
• 201778
• 204394
• 206894
• 231674
• 239062
• 239342
• 246238
• 248546
• 265702
• 267298
• 271162
• 285598
• 285728
• 298442
• 304004
• 313126
• 318278
• 325922
• 335414
• 338866

History of eliminated candidates

• 2022-11-29: Riesel 213988•5^4138363-1
• 2022-06-20: Riesel 63838•5^3887851-1
• 2022-06-14: Riesel 64598•5^3769854-1
• 2021-12-07: Riesel 273662•5^3493296-1
• 2021-10-10: Riesel 102818•5^3440382-1
• 2020-08-13: Riesel 109838•5^3168862-1
• 2020-03-16: Riesel 207494•5^3017502-1
• 2020-03-12: Riesel 238694•5^2979422-1
• 2020-03-09: Riesel 146264•5^2953282-1
• 2020-03-05: Riesel 35816•5^2945294-1
• 2019-06-23: Riesel 322498•5^2800819-1
• 2019-06-21: Riesel 88444•5^2799269-1
• 2018-08-15: Riesel 194368•5^2638045-1
• 2018-07-29: Riesel 66916•5^2628609-1
• 2018-06-19: Riesel 327926•5^2542838-1
• 2017-09-17: Riesel 301562•5^2408646-1
• 2017-08-25: Riesel 171362•5^2400996-1
• 2016-08-20: Riesel 180062•5^2249192-1
• 2016-05-30: Riesel 53546•5^2216664-1
• 2016-03-25: Riesel 296024•5^2185270-1
• 2016-01-11: Riesel 306398•5^2112410-1
• 2015-10-21: Riesel 100186•5^2079747-1
• 2014-09-21: Riesel 325918•5^1803339-1
• 2014-06-27: Riesel 138172•5^1714207-1
• 2014-06-19: Riesel 22478•5^1675150-1
• 2014-04-25: Riesel 326834•5^1634978-1
• 2014-04-09: Riesel 207394•5^1612573-1
• 2014-04-09: Riesel 104944•5^1610735-1
• 2014-03-21: Riesel 330286•5^1584399-1
• 2014-02-06: Riesel 22934•5^1536762-1
• 2014-01-31: Riesel 178658•5^1525224-1
• 2013-12-04: Riesel 173198•5^1457792-1
• 2013-11-01: Riesel 245114•5^1424104-1
• 2013-10-31: Riesel 175124•5^1422646-1
• 2013-08-04: Riesel 256612•5^1335485-1
• 2013-07-16: Riesel 268514•5^1292240-1
• 2013-07-05: Riesel 97366•5^1259955-1
• 2013-07-05: Riesel 243944•5^1258576-1
• 2013-06-29: Riesel 84466•5^1215373-1
• 2013-06-28: Riesel 150344•5^1205508-1
• 2013-06-25: Riesel 1396•5^1146713-1
• 2013-06-24: Riesel 329584•5^1122935-1
• 2013-06-23: Riesel 17152•5^1131205-1
• 2013-06-22: Riesel 305716•5^1093095-1
• 2013-06-20: Riesel 97768•5⁹⁸⁷³⁸³-1
• 2013-06-19: Riesel 243686•5^1036954-1
• 2013-06-19: Riesel 130484•5^1080012-1
• 2013-06-03: Riesel 114986•5^1052966-1
• 2013-06-03: Riesel 119878•5^1019645-1
• 2013-05-30: Riesel 70082•5⁹³⁶⁹⁷²-1
• 2013-05-08: Riesel 102976•5⁹²⁹⁸⁰¹-1
• 2013-01-10: Riesel 162434•5⁸⁵⁶⁰⁰⁴-1
• 2013-01-08: Riesel 174344•5⁸⁵⁵¹³⁸-1
• 2012-11-07: Riesel 57406•5⁸⁴⁴²⁵³-1
• 2012-10-12: Riesel 48764•5⁸³¹⁹⁴⁶-1
• 2012-07-03: Riesel 162668•5⁷⁸⁵⁷⁴⁸-1
• 2012-06-07: Riesel 289184•5⁷⁷⁰¹¹⁶-1
• 2012-06-02: Riesel 11812•5⁷⁶⁹³⁴³-1
• 2012-05-29: Riesel 316594•5⁷⁶⁶⁰⁰⁵-1
• 2012-05-18: Riesel 340168•5⁷⁵³⁷⁸⁹-1
• 2012-05-06: Riesel 338948•5⁷⁴³⁹⁹⁶-1
• 2012-05-03: Riesel 18656•5⁷³⁵³²⁶-1
• 2012-04-13: Riesel 5374•5⁷²³⁶⁹⁷-1
• 2012-02-07: Riesel 72532•5⁷⁰⁸⁴⁵³-1
• 2011-11-24: Riesel 2488•5⁶⁷⁹⁷⁶⁹-1
• 2011-11-11: Riesel 331882•5⁶⁷⁴⁹⁶¹-1
• 2011-07-18: Riesel 27994•5⁶⁴⁵²²¹-1
• 2011-07-13: Riesel 262172•5⁶⁴³³⁴²-1
• 2011-07-02: Riesel 49568•5⁶⁴⁰⁹⁰⁰-1
• 2011-02-14: Riesel 270748•5⁶¹⁴⁶²⁵-1
• 2011-02-11: Riesel 266206•5⁶⁰⁸⁶⁴⁹-1
• 2011-01-31: Riesel 210092•5⁶¹⁸¹³⁶-1
• 2011-01-24: Riesel 301016•5⁵⁸⁶⁸⁵⁸-1
• 2011-01-02: Riesel 30994•5⁵⁶⁵⁰⁹⁵-1
• 2010-12-30: Riesel 151026•5⁵⁵⁹⁶⁷⁰-1
• 2010-12-30: Riesel 3938•5⁵⁵⁸⁰³²-1
• 2010-12-29: Riesel 105782•5⁵⁵¹⁷⁶⁶-1
• 2010-12-26: Riesel 183916•5⁵¹⁹⁵⁹⁷-1
• 2010-12-25: Riesel 53542•5⁵¹⁵¹⁵⁵-1
• 2010-10-29: Riesel 48394•5⁴⁹⁰⁵⁷⁵-1
• 2010-10-19: Riesel 76322•5⁴⁸⁵¹⁷⁶-1
• 2010-09-11: Riesel 170446•5⁴⁶⁸⁰⁸¹-1
• 2010-09-07: Riesel 250216•5⁴⁶⁰⁷⁹⁷-1
• 2010-08-24: Riesel 341552•5⁴²⁷⁴⁷⁸-1
• 2010-07-09: Riesel 261448•5⁴⁶¹²¹⁷-1
• 2010-07-06: Riesel 215038•5³⁹²⁸¹⁷-1
• 2010-07-05: Riesel 98038•5³⁸⁹⁶⁴⁹-1
• 2010-07-04: Riesel 71084•5³⁸⁷⁷⁰⁴-1
• 2010-07-03: Riesel 156694•5³⁸³⁷⁸⁹-1
• 2010-06-23: Riesel 282316•5³⁵⁵⁰⁶³-1
• 2010-06-15: Riesel 68576•5³⁴⁴⁵⁹⁸-1
• 2010-06-13: Riesel 157672•5³³³⁶⁰³-1

Multi Reservation

• Here

See also

• Sierpiński-Riesel Base 5
• PrimeGrid Sierpiński base 5
• PrimeGrid

External links

Welcome to the Sierpinski / Riesel Base 5 Project - PrimeGrid Forums

PrimeGrid

Miscellaneous

Main

Subprojects

Type Proth : 321 Prime Search 27121 Prime Search Proth Prime Search Proth Prime Search Extended Proth Mega Prime Search Type Sierpiński : Seventeen or Bust Extended Sierpiński Project Prime Sierpiński Problem Sierpiński base 5 Type Riesel : The Riesel Problem Riesel base 5 Type Fermat : Generalized Fermat Prime Search b216+1 b217+1 b218+1 b219+1 b220+1 b221+1 b222+1 Fermat Divisor Search Type Cullen/Woodall : Cullen Prime Search Woodall Prime Search Generalized Cullen Prime Search Type Others : AP27 Search Sophie Germain Search Wieferich and Wall-Sun-Sun Prime Search

Completed

GFN b215+1

Others