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

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Exponent Range:










MnStatusDetails
7003327Factored
FactorDigitsBitsDate
43348672977217587207526179592891.82021-03-15 18:17:01
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-09-14jerome vallee6B6803E394A6AB224508942
Verified (Factored)2001-10-20chris clark6B6803E394A6AB226596938
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-03-15MarkS808756FD959119DE1196831953
P-1 factors
DateFactorB1B2
2021-03-15433486729772175872075261795912000000500000000
History
DateUserTypeResult
2021-03-16curtiscCERT
PRP Certification
Proof certified good
2021-03-15MarkSC-PRP
M7003327/4334867297721758720752617959 : 808756FD959119DE
PRP proof power = 8
PRP: Verified
Proof certified good
2021-03-15mikrF-PM1
Factor: 4334867297721758720752617959 / (P-1, B1=12000000, B2=500000000, E=12)
2020-10-29mikrNF
no factor from 2^71 to 2^72
2016-06-15ramgeisNF
no factor from 2^70 to 2^71
2016-06-15ramgeisNF
no factor from 2^69 to 2^70
2016-06-15ramgeisNF
no factor from 2^68 to 2^69
2016-06-09kkmrkkblmbrbkNF
no factor from 2^67 to 2^68
2016-04-26america64NF
no factor from 2^66 to 2^67
2015-06-12VictordeHollanderNF
no factor from 2^65 to 2^66
2015-06-02Squeeky_SquirrelNF-PM1
B1=180000, B2=4230000, E=6
2014-02-13-Anonymous-NF
no factor from 2^64 to 2^65
2014-02-06NesowaNF
no factor from 2^63 to 2^64
2011-11-28bcp19NF-PM1
B1=85000, B2=1530000, E=6