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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Exponent Range:










MnStatusDetails
12731681Factored
FactorDigitsBitsDate
101853449926.6old
407413793928.62008-09-08 08:37:59
31574568891031.62008-09-08 08:37:59
45834051611032.12008-09-08 08:37:59
7281784416305121431859.32015-11-12 11:51:35
494261451597373579291630224366218857687730203946151.82022-05-05 00:03:28
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-05XZTB6179F3864590F0551108762753
Verified2022-05-16FlaukrotistB6179F3864590F056619803353
P-1 factors
DateFactorB1B2
2022-05-054942614515973735792916302243662188576877302039400000428459850
History
DateUserTypeResult
2022-10-11Naegi MakotoNF-PM1
B1=25000000, B2=96059314260
2022-10-01LordJuliusNF
no factor from 2^67 to 2^68
2022-10-01LordJuliusNF
no factor from 2^66 to 2^67
2022-10-01LordJuliusNF
no factor from 2^65 to 2^66
2022-10-01LordJuliusNF
no factor from 2^64 to 2^65
2022-09-30Naegi MakotoNF
no factor from 2^71 to 2^72
2022-09-30Naegi MakotoNF
no factor from 2^70 to 2^71
2022-09-30Naegi MakotoNF
no factor from 2^69 to 2^70
2022-09-30Naegi MakotoNF
no factor from 2^68 to 2^69
2022-09-30Naegi MakotoNF
no factor from 2^67 to 2^68
2022-05-17curtiscCERT
PRP Certification
Proof certified good
2022-05-16FlaukrotistC-PRP
M12731681/101853449/407413793/3157456889/4583405161/728178441630512143/4942614515973735792916302243662188576877302039 : B6179F3864590F05
PRP proof power = 8
PRP: Verified
Proof certified good
2022-05-05Dr. Reiff LafleurCERT
PRP Certification
Proof certified good
2022-05-05XZTC-PRP
M12731681/101853449/407413793/3157456889/4583405161/728178441630512143 : B6179F3864590F05
PRP proof power = 8
PRP: Verified
Proof certified good
2022-05-05nordiF-PM1
Factor: 4942614515973735792916302243662188576877302039 / (P-1, B1=400000, B2=428459850)
2022-05-04nordiNF-PM1
B1=400000
2015-11-12TJAOIF
Factor: 728178441630512143 / TF: 59-60
2008-09-08Will EdgingtonF
Factor: 4583405161
2008-09-08Will EdgingtonF
Factor: 3157456889
2008-09-08Will EdgingtonF
Factor: 407413793