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

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MnStatusDetails
4019Composite, with 6 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
8039413.0old
829167929929.6old
280957036811134.7old
1514157522203372271480790314793096.9old
446289500732910720321241261838704134111.8old
47665731551577856116379769039144187288169893745148.42020-02-26 19:45:45
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000018144 / 40830
Estimated T-Level: 52.2 ⓘ
TF below 2^168 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-21Oliver KruseACC84173A6E7222F5013
Verified (Factored)2017-10-02kkmrkkblmbrbkACC84173A6E7222F5013
Verified (Factored)2017-12-07ATHACC84173A6E7222F5276013
Verified2020-02-27Jinyuan Wang2705654C498687906151953
Verified2020-02-28Team_Inspector2705654C498687906242953
Verified2020-04-17Oliver Kruse2705654C498687906193753
Verified (Factored)2022-05-12Jorge Coveiro2705654C49868790116053
History
DateUserTypeResult
2023-05-16-Anonymous-NF-PM1
B1=81000000000, B2=812832933743280450
2022-05-12Jorge CoveiroC-PRP
M4019/8039 : 2705654C49868790
PRP: Verified (Factored)
PRP without proof (small exponent)
2021-12-15Oliver KruseNF-PM1
B1=1000000000, B2=1005572446258380
2021-12-14Lisander ViaeneNF-PM1
B1=101101101, B2=79504284549690
2021-12-14Lisander ViaeneNF-PM1
B1=1000000, B2=35476771370040
2020-04-17Oliver KruseC-PRP
M4019/8039/829167929/28095703681/151415752220337227148079031479/4462895007329107203212412618387041/476657315515778561163797690391441872881698937 : 2705654C49868790
PRP: Verified (Factored)
PRP without proof (small exponent)
2020-02-28Team_InspectorC-PRP
M4019/8039/829167929/28095703681/151415752220337227148079031479/4462895007329107203212412618387041/476657315515778561163797690391441872881698937 : 2705654C49868790
PRP: Verified (Factored)
PRP without proof (small exponent)
2020-02-27Jinyuan WangC-PRP
M4019/8039/829167929/28095703681/151415752220337227148079031479/4462895007329107203212412618387041/476657315515778561163797690391441872881698937 : 2705654C49868790
PRP: Verified (Factored)
PRP without proof (small exponent)
2020-02-26James HintzF-ECM
Factor: 476657315515778561163797690391441872881698937 / (ECM curve 2818, B1=11000000, B2=1100000000, Sigma=654376549952609)
2017-12-07ATHC-PRP
M4019/8039/829167929/28095703681/151415752220337227148079031479/4462895007329107203212412618387041 : ACC84173A6E7222F
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M4019/8039/829167929/28095703681/151415752220337227148079031479/4462895007329107203212412618387041 : ACC84173A6E7222F
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M4019/known_factors : ACC84173A6E7222F
PRP without proof (not generated)