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
308801Factored
FactorDigitsBitsDate
9881633723.2old
19145663824.22008-07-21 09:16:25
13735468491030.42008-07-21 09:16:25
57066424811032.42008-07-21 09:16:25
346887348864923373776582553432994.82021-10-26 12:36:09
61011288796832678498149624742302348136118.92019-03-22 12:39:14
ECM
DigitsB1Curves
2550000280 / 280
30250000422 / 640
Estimated T-Level: 28.3 ⓘ
TF below 2^89 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse1305D185A9FD4D9B4013
Verified (Factored)2017-10-12Oliver Kruse1305D185A9FD4D9B415118013
Verified (Factored)2017-12-11ATH1305D185A9FD4D9B430352913
Verified (Factored)2019-03-22_p95holder_C2BD678CF382900E521547953
Verified (Factored)2019-03-23kkmrkkblmbrbkC2BD678CF382900E52106253
Verified2021-10-26SRJ2877C2BD678CF382900E63340953
History
DateUserTypeResult
2024-02-24Denial140NF-PM1
B1=10000000, B2=206662045590
2024-02-22Denial140NF-PM1
B1=10000000
2023-03-22Denial140NF-PM1
B1=1000000, B2=65871826020
2021-10-26NingCERT
PRP Certification
Proof certified good
2021-10-26SRJ2877C-PRP
M308801/9881633/19145663/1373546849/5706642481/34688734886492337377658255343/610112887968326784981496247423023481 : C2BD678CF382900E
PRP proof power = 5
PRP: Verified
Proof certified good
2021-10-26nordiF-ECM
Factor: 34688734886492337377658255343 / (ECM curve 131, B1=250000, B2=36750000, Sigma=7213479447699621)
2019-03-23kkmrkkblmbrbkC-PRP
M308801/9881633/1373546849/19145663/5706642481/610112887968326784981496247423023481 : C2BD678CF382900E
PRP: Verified (Factored)
PRP without proof (small exponent)
2019-03-22_p95holder_C-PRP
M308801/9881633/19145663/1373546849/5706642481/610112887968326784981496247423023481 : C2BD678CF382900E
PRP: Verified (Factored)
PRP without proof (small exponent)
2019-03-22TJAOIF-ECM
Factor: 610112887968326784981496247423023481 / (ECM curve 52, B1=250000, B2=25000000)
2017-12-11ATHC-PRP
M308801/9881633/19145663/1373546849/5706642481 : 1305D185A9FD4D9B
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M308801/9881633/1373546849/19145663/5706642481 : 1305D185A9FD4D9B
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M308801/9881633/1373546849/19145663/5706642481 : 1305D185A9FD4D9B
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M308801/9881633/1373546849/19145663/5706642481 : 1305D185A9FD4D9B
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 5706642481
2008-07-21J FeitsmaF
Factor: 19145663
2008-07-21J FeitsmaF
Factor: 1373546849