Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
90820319Tested as composite (unverified, reliable): unconfirmed PRP test says not-prime
TF
No factors below 277
TF target 275
P-1
B1 = 745000
B2 = 17880000
PRP
StatusDateUserResidueShiftTypeBase
Unverified (Reliable)2020-01-01Ben Delo15E9F925C2D72B__7101946613
History
DateUserTypeResult
2024-05-16James HeinrichNF
no factor from 2^68 to 2^69
2020-01-01Ben DeloC-PRP
15E9F925C2D72B__
PRP: Unverified (Reliable)
PRP without proof (not generated)
2019-04-04penluNF-PM1
B1=745000, B2=17880000, e=12
2019-01-20TheJudgerNF
no factor from 2^76 to 2^77
2018-12-09TheJudgerNF
no factor from 2^75 to 2^76
2018-12-09TheJudgerNF
no factor from 2^74 to 2^75
2018-12-09TheJudgerNF
no factor from 2^73 to 2^74
2017-07-06Carsten KossendeyNF
no factor from 2^72 to 2^73
2016-04-08Carsten KossendeyNF
no factor from 2^71 to 2^72
2014-09-04-Anonymous-NF
no factor from 2^70 to 2^71
2014-01-31GrunwalderGIMPNF
no factor from 2^69 to 2^70
2011-06-23Carsten KossendeyNF
no factor from 2^68 to 2^69
2010-12-13Carsten KossendeyNF
no factor from 2^67 to 2^68
2010-08-23Carsten KossendeyNF
no factor from 2^66 to 2^67
2010-08-12Carsten KossendeyNF
no factor from 2^65 to 2^66