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
2269439Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 262
TF below 2^82 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 100000000
B2 = 100026862650
ECM
DigitsB1Curves
2550000280 / 280
30250000149 / 640
Estimated T-Level: 26.2
LL
StatusDateUserResidueShift
VerifiedMartin FahlgrenFE38D7CA833BE1700
Verified1999-03-15Kent LeeFE38D7CA833BE1702060069
Verified2018-04-25kkmrkkblmbrbkFE38D7CA833BE170914075
History
DateUserTypeResult
2024-12-10timc995NF-PM1
B1=100000000, B2=100026862650
2024-04-12TJAOINF
no factor from 2^69 to 2^70
2024-01-31JossNF-PM1
B1=5736702, B2=11599221270
2024-01-02NumberwangNF-PM1
B1=226000, B2=1035573000
2023-12-10JossNF-PM1
B1=2868352, B2=6903809220
2023-11-08JossNF-PM1
B1=2868351, B2=3275510700
2023-07-06JossNF-PM1
B1=1000000, B2=14160406260
2023-07-05JossNF-PM1
B1=1000000, B2=6903809220
2023-07-04JossNF-PM1
B1=1000000, B2=3275510700
2021-06-17TJAOINF
no factor from 2^68 to 2^69
2020-09-19krackerNF-PM1
B1=50000000, B2=1500000000
2020-09-18krackerNF-PM1
B1=1000000, B2=30000000
2019-11-20BigBrotherNF-PM1
B1=3000000, B2=90000000, E=12
2019-04-29TJAOINF
no factor from 2^67 to 2^68
2018-04-25kkmrkkblmbrbkC-LL
FE38D7CA833BE170
2017-01-15Gordon SpenceNF
no factor from 2^66 to 2^67
2016-04-12JossNF-PM1
B1=447897, B2=16245193, E=12
2016-04-04JossNF-PM1
B1=373248, B2=6718464, E=12
2016-04-02JossNF-PM1
B1=311040
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-10-31ramgeisNF
no factor from 2^65 to 2^66
2015-03-10VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-10VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-02JossNF-PM1
B1=128282
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-06Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-03markrNF-PM1
B1=100000, B2=2100000, E=6
2010-11-12JossNF-PM1
B1=30000
2010-11-06JossNF-PM1
B1=15000
2009-01-14Sturle SundeNF
no factor from 2^60 to 2^61