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

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Exponent Range:










MnStatusDetails
3323Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
2312809721.1old
383638612980687840513835638646093397760740131.52018-11-13 02:59:25
49281111453320670940510400303177472498147199818674847789698090803366218.22021-06-14 17:27:27
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000014901 / 40830
Estimated T-Level: 51.8
TF below 2^167 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse6F3CD2483CDCF3741013
Verified (Factored)2017-10-12kkmrkkblmbrbk6F3CD2483CDCF3741297713
Verified (Factored)2018-11-13M8909387D4B4E87C30847F872186453
Verified (Factored)2018-11-15Oliver KruseD4B4E87C30847F872232953
Verified (Factored)2020-04-17Oliver KruseD4B4E87C30847F872287053
Verified2021-06-15Daniil TsarkovD4B4E87C30847F873109553
Verified2021-06-18Chad Steenerson D4B4E87C30847F87374053
History
DateUserTypeResult
2024-05-19masserNF-PM1
B1=77000000000, B2=52314384983941080
2022-01-01LordJuliusNF-PM1
B1=10000000000, B2=1081780886416230
2021-06-18Chad Steenerson C-PRP
M3323/2312809/3836386129806878405138356386460933977607/492811114533206709405104003031774724981471998186748477896980908033 : D4B4E87C30847F87
PRP: Verified
PRP without proof (small exponent)
2021-06-15Daniil TsarkovC-PRP
M3323/2312809/3836386129806878405138356386460933977607/492811114533206709405104003031774724981471998186748477896980908033 : D4B4E87C30847F87
PRP: Verified
PRP without proof (small exponent)
2021-06-14Ryan PropperF-ECM
Factor: 492811114533206709405104003031774724981471998186748477896980908033 / (ECM curve 1, B1=260000000, B2=3650312415768, Sigma=5908314029316320256)
2020-04-17Oliver KruseC-PRP
M3323/2312809/3836386129806878405138356386460933977607 : D4B4E87C30847F87
PRP: Verified
PRP without proof (small exponent)
2018-11-15Oliver KruseC-PRP
M3323/2312809/3836386129806878405138356386460933977607 : D4B4E87C30847F87
PRP: Verified
PRP without proof (small exponent)
2018-11-13M8909387C-PRP
M3323/2312809/3836386129806878405138356386460933977607 : D4B4E87C30847F87
PRP: Verified
PRP without proof (small exponent)
2018-11-13eteoF-ECM
Factor: 3836386129806878405138356386460933977607 / (ECM curve 694, B1=11000000, B2=1100000000)
2017-10-12kkmrkkblmbrbkC-PRP
M3323/2312809 : 6F3CD2483CDCF374
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M3323/2312809 : 6F3CD2483CDCF374
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M3323/2312809 : 6F3CD2483CDCF374
PRP without proof (not generated)