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
249541Factored
FactorDigitsBitsDate
51904529825.6old
209594476731134.32008-07-21 09:14:58
16882951585534811650.62009-01-14 12:39:34
1676102902498198825338892477.12016-06-23 23:45:52
6850530036945900405542232479.22020-06-07 04:54:59
60148061877558354448770042312892.32020-07-15 16:59:20
12327134836194068224439103115255133106.62023-05-17 10:41:19
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000387 / 1566
Estimated T-Level: 31.2 ⓘ
TF below 2^99 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-22Oliver KruseEFA9EE026664024F4013
Verified (Factored)2017-10-12kkmrkkblmbrbkEFA9EE026664024F410479513
Verified (Factored)2020-04-17Oliver KruseD7AA636410D18CF5418516053
Verified (Factored)2020-06-07M MillerD7AA636410D18CF556641253
Verified (Factored)2020-07-15ATHD7AA636410D18CF568284053
Verified2023-05-17Naegi MakotoD7AA636410D18CF5722485953
History
DateUserTypeResult
2023-05-17curtiscCERT
PRP Certification
Proof certified good
2023-05-17Naegi MakotoC-PRP
M249541/51904529/20959447673/1688295158553481/167610290249819882533889/685053003694590040554223/6014806187755835444877004231/123271348361940682244391031152551 : D7AA636410D18CF5
PRP proof power = 5
PRP: Verified
Proof certified good
2023-05-17Naegi MakotoF-ECM
Factor: 123271348361940682244391031152551 / (ECM curve 64, B1=1000000, B2=2841983430, Sigma=648915891137742)
2022-04-18Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-08-10Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-07-15ATHC-PRP
M249541/51904529/20959447673/1688295158553481/167610290249819882533889/685053003694590040554223/6014806187755835444877004231 : D7AA636410D18CF5
PRP: Verified (Factored)
PRP without proof (small exponent)
2020-07-15_p95holder_F-ECM
Factor: 6014806187755835444877004231 / (ECM curve 2, B1=250000, B2=25000000)
2020-06-07M MillerC-PRP
M249541/51904529/20959447673/1688295158553481/167610290249819882533889/685053003694590040554223 : D7AA636410D18CF5
PRP: Verified (Factored)
PRP without proof (small exponent)
2020-06-07nordiF-ECM
Factor: 685053003694590040554223 / (ECM curve 11, B1=250000, B2=25000000, Sigma=6861608508920033)
2020-04-17Oliver KruseC-PRP
M249541/51904529/20959447673/1688295158553481/167610290249819882533889 : D7AA636410D18CF5
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M249541/51904529/20959447673/1688295158553481/167610290249819882533889 : EFA9EE026664024F
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M249541/known_factors : EFA9EE026664024F
PRP without proof (not generated)
2016-06-23TJAOIF-ECM
Factor: 167610290249819882533889 / (ECM curve 48, B1=50000, B2=5000000)
2009-01-14Matthias WurtingerF-ECM
Factor: 1688295158553481
2008-07-21J FeitsmaF
Factor: 20959447673