Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
5867
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
16239857824.0old
3476860705691238.3old
3833166901211238.5old
1525830369473422571457132477.0old
302366330582640225454585699614515003375340131.22020-11-14 07:03:32
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000005790 / 16550
Estimated T-Level: 46.7 ⓘ
TF below 2^150 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 Kruse3E408F35242D66644013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk3E408F35242D66644013
Factored
No proof (small exponent)
2017-12-07ATH3E408F35242D66644502213
Factored
No proof (small exponent)
2020-04-17Oliver KruseBE214232EAFB56AD4549153
Verified
No proof (small exponent)
2020-11-14Jinyuan WangBE214232EAFB56AD522753
Verified
No proof (small exponent)
2020-11-17fre_gamesBE214232EAFB56AD5106453
History
DateUserTypeResult
2025-05-27masserNF-PP1Start=175/47, B1=1500000000, B2=1498500000000
2023-07-23-anonymous-NF-PM1B1=42000000000, B2=171618937469779800
2021-07-06ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-11-17fre_gamesC-PRPM5867/16239857/347686070569/383316690121/152583036947342257145713/3023663305826402254545856996145150033753 : BE214232EAFB56AD
2020-11-14Jinyuan WangC-PRPM5867/16239857/347686070569/383316690121/152583036947342257145713/3023663305826402254545856996145150033753 : BE214232EAFB56AD
2020-11-14Ryan PropperF-ECMFactor: 3023663305826402254545856996145150033753
2020-04-17Oliver KruseC-PRPM5867/16239857/347686070569/383316690121/152583036947342257145713 : BE214232EAFB56AD
2017-12-07ATHC-PRPM5867/16239857/347686070569/383316690121/152583036947342257145713 : 3E408F35242D6664
2017-10-02kkmrkkblmbrbkC-PRPM5867/16239857/347686070569/383316690121/152583036947342257145713 : 3E408F35242D6664
2017-09-21Oliver KruseC-PRPM5867/known_factors : 3E408F35242D6664