Marin Mersenne 2^P-1
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MnStatusDetails
327979Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
7576297320325611549.4old
700607634167681771756.02014-05-10 23:57:27
18157221224776010055559948315135933107.22024-09-16 18:38:21
ECM
DigitsB1Curves
2550000280 / 280
30250000543 / 640
Estimated T-Level: 29.2
TF below 2^92 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse93D1FA1BC4628E672013
Verified (Factored)2017-10-13Oliver Kruse93D1FA1BC4628E67218681213
Verified (Factored)2017-12-12ATH93D1FA1BC4628E67230735313
Verified (Factored)2020-04-18Oliver KruseCED09C8B8D013DD1217924453
Verified (Factored)2024-09-06kkmrkkblmbrbkCED09C8B8D013DD1212616053
Verified2024-09-16yuriy_5-1CED09C8B8D013DD137638053
P-1 factors
DateFactorB1B2
2024-09-16181572212247760100555599483151359120000021704299857260
History
DateUserTypeResult
2024-09-16EthanDCERT
PRP Certification
Proof certified good
2024-09-16yuriy_5-1C-PRP
M327979/757629732032561/70060763416768177/181572212247760100555599483151359 : CED09C8B8D013DD1
PRP proof power = 5
PRP: Verified
Proof certified good
2024-09-16yuriy_5-1F-PM1
Factor: 181572212247760100555599483151359 / (P-1, B1=12000002, B2=1704299857260)
2024-09-06fordobrCERT
PRP Certification
Proof certified good
2024-09-06kkmrkkblmbrbkC-PRP
M327979/757629732032561/70060763416768177 : CED09C8B8D013DD1
PRP proof power = 5
PRP: Verified (Factored)
Proof certified good
2023-03-24Denial140NF-PM1
B1=1000000, B2=20563492950
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M327979/757629732032561/70060763416768177 : CED09C8B8D013DD1
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-12-12ATHC-PRP
M327979/757629732032561/70060763416768177 : 93D1FA1BC4628E67
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M327979/757629732032561/70060763416768177 : 93D1FA1BC4628E67
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M327979/757629732032561/70060763416768177 : 93D1FA1BC4628E67
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M327979/757629732032561/70060763416768177 : 93D1FA1BC4628E67
PRP without proof (not generated)
2014-05-10Richard B. WoodsF-ECM
Factor: 70060763416768177