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:










MnStatusDetails
17657Factored
FactorDigitsBitsDate
105943616.7old
423769618.72008-08-26 19:58:51
55513609825.72008-08-26 19:58:51
182784910871134.12008-08-26 19:58:51
2700346845462137292308771395250332104.42017-11-13 07:32:07
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000001211 / 4588
Estimated T-Level: 36.3 ⓘ
TF below 2^116 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-21Oliver KruseCF77C704E4CB84834013
Verified (Factored)2017-10-12kkmrkkblmbrbkCF77C704E4CB848341342213
Verified2017-11-14Oliver Kruse2CD01821D1ED47B951179253
Verified2017-11-14kkmrkkblmbrbk2CD01821D1ED47B95322353
History
DateUserTypeResult
2023-05-20JacobZNF-PM1
B1=6000000000, B2=17613225783603450
2021-08-27Seth_TrNF-PM1
B1=400000000
2017-11-14kkmrkkblmbrbkC-PRP
M17657/105943/423769/55513609/18278491087/27003468454621372923087713952503 : 2CD01821D1ED47B9
PRP: Verified
PRP without proof (small exponent)
2017-11-14Oliver KruseC-PRP
M17657/105943/423769/55513609/18278491087/27003468454621372923087713952503 : 2CD01821D1ED47B9
PRP: Verified
PRP without proof (small exponent)
2017-11-13James HintzF-ECM
Factor: 27003468454621372923087713952503 / (ECM curve 1115, B1=1000000, B2=100000000)
2017-10-12kkmrkkblmbrbkC-PRP
M17657/105943/423769/55513609/18278491087 : CF77C704E4CB8483
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M17657/105943/423769/55513609/18278491087 : CF77C704E4CB8483
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M17657/105943/423769/55513609/18278491087 : CF77C704E4CB8483
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 18278491087
2008-08-26-Anonymous-F
Factor: 55513609
2008-08-26-Anonymous-F
Factor: 423769