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
2100001Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 271
TF target 262
TF below 2^82 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 88500000
B2 = 296684838450
ECM
DigitsB1Curves
2550000280 / 280
30250000134 / 640
Estimated T-Level: 26.0 ⓘ
LL
StatusDateUserResidueShift
VerifiedJeff Mitchell9CDF105E9E9FE3B80
Verified1999-02-07Nick Willis9CDF105E9E9FE3B81631598
Verified2017-09-19kkmrkkblmbrbk9CDF105E9E9FE3B8673510
Verified2020-12-20-Anonymous-9CDF105E9E9FE3B8923972
History
DateUserTypeResult
2025-02-15timc995NF-PM1
B1=88500000, B2=296684838450
2024-01-27JossNF-PM1
B1=5917550, B2=11966409000
2024-01-02NumberwangNF-PM1
B1=210000, B2=1025551800
2023-12-10JossNF-PM1
B1=2958776, B2=6378884820
2023-11-08JossNF-PM1
B1=2958775, B2=2961609420
2023-07-02JossNF-PM1
B1=1000000, B2=32279582790
2023-07-01JossNF-PM1
B1=1000000, B2=15961695750
2023-06-29JossNF-PM1
B1=1000000, B2=7802764200
2023-05-22JossNF-PM1
B1=1000000, B2=3702033720
2021-06-06NumberwangNF-PM1
B1=60000000, B2=1800000000
2020-12-20-Anonymous-C-LL
9CDF105E9E9FE3B8
2017-09-19kkmrkkblmbrbkC-LL
9CDF105E9E9FE3B8
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-12-23ramgeisNF
no factor from 2^70 to 2^71
2014-03-08Never Odd Or EvenNF
no factor from 2^69 to 2^70
2014-03-08Never Odd Or EvenNF
no factor from 2^68 to 2^69
2014-03-08Never Odd Or EvenNF
no factor from 2^67 to 2^68
2014-03-08Never Odd Or EvenNF
no factor from 2^66 to 2^67
2014-03-08Never Odd Or EvenNF
no factor from 2^65 to 2^66
2013-10-19David CampeauNF
no factor from 2^64 to 2^65
2012-02-16BloodIceNF-PM1
B1=50000000
2012-02-10BloodIceNF-PM1
B1=10000000
2012-02-05BloodIceNF
no factor from 2^63 to 2^64
2012-02-05BloodIceNF
no factor from 2^62 to 2^63
2011-06-26Rob_DeeNF
no factor from 2^61 to 2^62
2009-07-15BigBrotherNF-PM1
B1=200000, B2=5000000, E=6
2009-01-03Sturle SundeNF
no factor from 2^60 to 2^61