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

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MnStatusDetails
61858297TF
No factors below 274
TF target 274
P-1
B1 = 1000000
B2 = 30000000
LL
StatusDateUserResidueShift
Verified2013-02-28curtisc6E5776128C2FC76E22654401
Bad2021-08-08Dmitriy DegtiarevFB3675A6450451731063803
Verified2021-08-18ZacHFX6E5776128C2FC76E14920288
History
DateUserTypeResult
2021-08-23riccardo ubertiNF-PM1
B1=1000000, B2=30000000, E=12
2021-08-18ZacHFXC-LL
6E5776128C2FC76E
2021-08-08Dmitriy DegtiarevC-LL
FB3675A645045173
2016-03-06-Anonymous-NF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2013-02-28curtiscC-LL
6E5776128C2FC76E
2012-05-19kdgehmanNF-PM1
B1=625000, B2=16250000, E=6
2012-05-02kdgehmanNF
no factor from 2^72 to 2^73
2012-03-22kdgehmanNF
no factor from 2^71 to 2^72
2012-03-22kdgehmanNF
no factor from 2^70 to 2^71
2012-03-22kdgehmanNF
no factor from 2^69 to 2^70
2009-09-30Sturle SundeNF
no factor from 2^68 to 2^69
2009-09-27Dirk-HRONF
no factor from 2^67 to 2^68
2009-09-19Dirk-HRONF
no factor from 2^66 to 2^67
2009-02-14arnaudNF
no factor from 2^65 to 2^66
2009-02-13arnaudNF
no factor from 2^64 to 2^65
2009-02-10-Anonymous-NF
no factor from 2^63 to 2^64