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

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MnStatusDetails
3701Composite, with 6 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
111031616.8old
318287618.3old
1561823720.6old
29415789527271341.4old
2288986052330019990172167.6old
109754645509705868544488653964585083964359096837879152169.62019-12-06 15:09:27
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000013719 / 40830
Estimated T-Level: 51.7
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 KruseFC48A60AC898CF495013
Verified (Factored)2017-10-02kkmrkkblmbrbkFC48A60AC898CF495013
Verified (Factored)2017-12-07ATHFC48A60AC898CF495177513
Verified2019-12-07xyuzyz22E65E28CF99682D6350053
Verified2019-12-08GAN22E65E28CF99682D6175653
Verified2020-04-17Oliver Kruse22E65E28CF99682D6169453
History
DateUserTypeResult
2024-03-30masserNF-PM1
B1=77000000000, B2=122598431474418900
2021-08-27Seth_TrNF-PM1
B1=100000000
2021-08-23H MichaelsonNF-PP1
Start=2/7, B1=100000000, B2=10000000000
2020-04-17Oliver KruseC-PRP
M3701/111031/318287/1561823/2941578952727/228898605233001999017/1097546455097058685444886539645850839643590968378791 : 22E65E28CF99682D
PRP: Verified
PRP without proof (small exponent)
2019-12-08GANC-PRP
M3701/111031/318287/1561823/2941578952727/228898605233001999017/1097546455097058685444886539645850839643590968378791 : 22E65E28CF99682D
PRP: Verified
PRP without proof (small exponent)
2019-12-07xyuzyzC-PRP
M3701/111031/318287/1561823/2941578952727/228898605233001999017/1097546455097058685444886539645850839643590968378791 : 22E65E28CF99682D
PRP: Verified
PRP without proof (small exponent)
2019-12-06Ryan PropperF-ECM
Factor: 1097546455097058685444886539645850839643590968378791 / (ECM curve 1, B1=260000000)
2017-12-07ATHC-PRP
M3701/111031/318287/1561823/2941578952727/228898605233001999017 : FC48A60AC898CF49
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M3701/111031/318287/1561823/2941578952727/228898605233001999017 : FC48A60AC898CF49
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M3701/known_factors : FC48A60AC898CF49
PRP without proof (not generated)