Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
219943Factored
FactorDigitsBitsDate
215051467691134.3old
222218911428258272230885512684.22020-10-18 12:34:26
ECM
DigitsB1Curves
2550000280 / 280
30250000532 / 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 Kruse54871342F9B809131013
Verified (Factored)2017-10-12kkmrkkblmbrbk54871342F9B80913113914813
Verified (Factored)2020-04-17Oliver Kruse6624C23465666796116615253
Verified2020-10-18mrh6624C2346566679628469353
Verified2023-08-03USAFSS6624C2346566679623849753
History
DateUserTypeResult
2023-08-04theojkCERT
PRP Certification
Proof certified good
2023-08-03USAFSSC-PRP
M219943/21505146769/22221891142825827223088551 : 6624C23465666796
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
2020-10-18FineMojonCERT
PRP Certification
Proof certified good
2020-10-18mrhC-PRP
M219943/21505146769/22221891142825827223088551 : 6624C23465666796
PRP proof power = 5
PRP: Verified
Proof certified good
2020-10-18_p95holder_F-ECM
Factor: 22221891142825827223088551 / (ECM curve 1, B1=250000, B2=25000000)
2020-04-17Oliver KruseC-PRP
M219943/21505146769 : 6624C23465666796
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M219943/21505146769 : 54871342F9B80913
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M219943/21505146769 : 54871342F9B80913
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M219943/21505146769 : 54871342F9B80913
PRP without proof (not generated)