Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
219941Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
71700767826.1old
1916732197783031547.42014-03-06 11:24:25
11438545800801069393265540572889.92019-12-10 08:21:25
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000415 / 1566
Estimated T-Level: 31.3
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 Kruse2EC10B53A93629072013
Verified (Factored)2017-10-12kkmrkkblmbrbk2EC10B53A9362907210449013
Verified2019-12-11Niels_Mache_Nextcloud97219030BBA129FD36079853
Verified2019-12-11marssystems97219030BBA129FD318201953
Verified2023-08-03USAFSS97219030BBA129FD319025853
History
DateUserTypeResult
2023-08-03curtiscCERT
PRP Certification
Proof certified good
2023-08-03USAFSSC-PRP
M219941/71700767/191673219778303/1143854580080106939326554057 : 97219030BBA129FD
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-05Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2021-06-05Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2019-12-11marssystemsC-PRP
M219941/71700767/191673219778303/1143854580080106939326554057 : 97219030BBA129FD
PRP: Verified
PRP without proof (small exponent)
2019-12-11Niels_Mache_NextcloudC-PRP
M219941/71700767/191673219778303/1143854580080106939326554057 : 97219030BBA129FD
PRP: Verified
PRP without proof (small exponent)
2019-12-10Niels_Mache_NextcloudF-ECM
Factor: 1143854580080106939326554057 / (ECM curve 2, B1=250000, B2=25000000, Sigma=7999355463362149)
2017-10-12kkmrkkblmbrbkC-PRP
M219941/71700767/191673219778303 : 2EC10B53A9362907
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M219941/71700767/191673219778303 : 2EC10B53A9362907
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M219941/71700767/191673219778303 : 2EC10B53A9362907
PRP without proof (not generated)
2014-03-06TJAOIF
Factor: 191673219778303