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
305477Factored
FactorDigitsBitsDate
87977377826.4old
68988925691032.72008-07-21 09:16:21
1360136864357280030335523832786.82019-04-05 11:26:19
185585938236078851429756929612993.92021-09-08 22:54:10
ECM
DigitsB1Curves
2550000280 / 280
30250000425 / 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 Kruse4365706DA648FC722013
Verified (Factored)2017-10-12Oliver Kruse4365706DA648FC72223806813
Verified (Factored)2017-12-11ATH4365706DA648FC72222487013
Verified (Factored)2019-04-06treborDACBB62CD1FE7C6B327273653
Verified (Factored)2019-04-07kkmrkkblmbrbkDACBB62CD1FE7C6B315953353
Verified (Factored)2019-04-07matzetoniDACBB62CD1FE7C6B36388453
Verified2021-09-08H MichaelsonDACBB62CD1FE7C6B44139853
History
DateUserTypeResult
2024-02-23Denial140NF-PM1
B1=10000000, B2=206662045590
2024-02-22Denial140NF-PM1
B1=10000000
2023-03-17Denial140NF-PM1
B1=1000000, B2=65871826020
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2021-09-09James HeinrichCERT
PRP Certification
Proof certified good
2021-09-08H MichaelsonC-PRP
M305477/87977377/6898892569/136013686435728003033552383/18558593823607885142975692961 : DACBB62CD1FE7C6B
PRP proof power = 5
PRP: Verified
Proof certified good
2021-09-08nordiF-ECM
Factor: 18558593823607885142975692961 / (ECM curve 133, B1=250000, B2=38500000, Sigma=4703618660661689)
2019-04-07matzetoniC-PRP
M305477/87977377/6898892569/136013686435728003033552383 : DACBB62CD1FE7C6B
PRP: Verified (Factored)
PRP without proof (small exponent)
2019-04-07kkmrkkblmbrbkC-PRP
M305477/87977377/6898892569/136013686435728003033552383 : DACBB62CD1FE7C6B
PRP: Verified (Factored)
PRP without proof (small exponent)
2019-04-06treborC-PRP
M305477/87977377/6898892569/136013686435728003033552383 : DACBB62CD1FE7C6B
PRP: Verified (Factored)
PRP without proof (small exponent)
2019-04-05TJAOIF-ECM
Factor: 136013686435728003033552383 / (ECM curve 38, B1=250000, B2=25000000)
2017-12-11ATHC-PRP
M305477/87977377/6898892569 : 4365706DA648FC72
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M305477/87977377/6898892569 : 4365706DA648FC72
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M305477/87977377/6898892569 : 4365706DA648FC72
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M305477/87977377/6898892569 : 4365706DA648FC72
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 6898892569