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
155833Factored
FactorDigitsBitsDate
70990661975735655432454187832892.52009-01-11 06:18:25
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000175 / 1566
Estimated T-Level: 30.6
TF below 2^97 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Gary Gostin40F30
Verified (Factored)Amdahl 6 - 1989038940F30
Verified (Factored)George Johnston88DAE6A7838940F30
Verified (Factored)Brian J. Beesley88DAE6A7838940F30
Verified (Factored)Eivind Triel88DAE6A7838940F382987
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseA78170D743DBA14C1013
Verified2017-10-11kkmrkkblmbrbkA78170D743DBA14C114302413
Verified2020-04-17Oliver Kruse71C56640F3E78F6D1743153
Verified2024-02-03Wentao Huang71C56640F3E78F6D12021853
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M155833/7099066197573565543245418783 : 71C56640F3E78F6D
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^57 to 2^58
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-17Oliver KruseC-PRP
M155833/7099066197573565543245418783 : 71C56640F3E78F6D
PRP: Verified
PRP without proof (small exponent)
2017-10-11kkmrkkblmbrbkC-PRP
M155833/7099066197573565543245418783 : A78170D743DBA14C
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M155833/7099066197573565543245418783 : A78170D743DBA14C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M155833/7099066197573565543245418783 : A78170D743DBA14C
PRP without proof (not generated)
2016-12-10kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-01-11axnF-ECM
Factor: 7099066197573565543245418783
2008-12-30Sturle SundeNF
no factor from 2^58 to 2^59