Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
3227221Factored
FactorDigitsBitsDate
96816631826.5old
211636505981771444.32008-09-30 14:46:55
791390493437931446.22014-02-05 16:53:37
93650279809791291653.12014-09-02 11:40:23
84095465819910470387955532582.82021-11-07 02:34:41
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-11-02Oliver Kruse49C3A07C32D073AA4272305253
Verified (Factored)2017-12-13kkmrkkblmbrbk49C3A07C32D073AA488145553
Verified2021-11-09SRJ287749C3A07C32D073AA5290415153
P-1 factors
DateFactorB1B2
2021-11-0784095465819910470387955533227221129088840
History
DateUserTypeResult
2022-07-21JossNF-PM1
B1=3750000, B2=3250412550
2022-03-20JossNF-PM1
B1=3750000, B2=1042528410
2021-12-20JossNF-PM1
B1=3750000, B2=116735850
2021-11-09Team_InspectorCERT
PRP Certification
Proof certified good
2021-11-09SRJ2877C-PRP
M3227221/96816631/21163650598177/79139049343793/9365027980979129/8409546581991047038795553 : 49C3A07C32D073AA
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-07JossF-PM1
Factor: 8409546581991047038795553 / (P-1, B1=3227221, B2=129088840, E=12)
2021-09-13JossNF-PM1
B1=3227221
2021-08-31JossNF
no factor from 2^68 to 2^69
2021-02-04JossNF
no factor from 2^67 to 2^68
2021-02-03JossNF
no factor from 2^66 to 2^67
2021-02-01JossNF
no factor from 2^65 to 2^66
2020-12-27JossNF-PM1
B1=322722, B2=9681663, E=6
2017-12-13kkmrkkblmbrbkC-PRP
M3227221/96816631/21163650598177/79139049343793/9365027980979129 : 49C3A07C32D073AA
PRP: Verified (Factored)
PRP without proof (not generated)
2017-11-02Oliver KruseC-PRP
M3227221/96816631/21163650598177/79139049343793/9365027980979129 : 49C3A07C32D073AA
PRP: Verified (Factored)
PRP without proof (not generated)
2014-09-02TJAOIF
Factor: 9365027980979129
2014-02-05TJAOIF
Factor: 79139049343793
2008-09-30markrF
Factor: 21163650598177