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

PrimeNet Exponent Status

Exponent Range:





MnDetails
4001
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
24007514.6old
4167753277911238.6old
26505848725991341.3old
182639060157532038898576789512993.9old
1122823499211241001116559718128260469585319502167801269544260973765212.82021-04-30 16:36:50
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000017732 / 40830
Estimated T-Level: 52.2 ⓘ
TF below 2^168 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver KruseE8AE2612AA131CAF4013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbkE8AE2612AA131CAF4013
Factored
No proof (small exponent)
2017-12-07ATHE8AE2612AA131CAF4158913
Factored
No proof (small exponent)
2020-04-17Oliver Kruse36D02A5B658B57844142853
Verified
No proof (small exponent)
2021-04-30mikr36D02A5B658B57845184253
Verified
No proof (small exponent)
2021-05-02daveward200536D02A5B658B5784562753
History
DateUserTypeResult
2025-05-08masserNF-PP1Start=83/17, B1=2600000000, B2=2597400000000
2023-05-15-anonymous-NF-PM1B1=81000000000, B2=812832933743280450
2022-02-13LordJuliusNF-PM1B1=1000000000, B2=3253810517717760
2021-09-09Jinyuan WangNF-PM1B1=130000000
2021-08-27Seth_TrNF-PM1B1=100000000
2021-05-02daveward2005C-PRPM4001/24007/416775327791/2650584872599/18263906015753203889857678951/11228234992112410011165597181282604695853195021678012695442609737 : 36D02A5B658B5784
2021-04-30mikrC-PRPM4001/24007/416775327791/2650584872599/18263906015753203889857678951/11228234992112410011165597181282604695853195021678012695442609737 : 36D02A5B658B5784
2021-04-30Ryan PropperF-ECMFactor: 11228234992112410011165597181282604695853195021678012695442609737
2020-04-17Oliver KruseC-PRPM4001/24007/416775327791/2650584872599/18263906015753203889857678951 : 36D02A5B658B5784
2017-12-07ATHC-PRPM4001/24007/416775327791/2650584872599/18263906015753203889857678951 : E8AE2612AA131CAF
2017-10-02kkmrkkblmbrbkC-PRPM4001/24007/416775327791/2650584872599/18263906015753203889857678951 : E8AE2612AA131CAF
2017-09-21Oliver KruseC-PRPM4001/known_factors : E8AE2612AA131CAF