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
23743Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1150346925431236.7old
19067927842905917511960.72008-08-29 02:24:44
20300737562251357235132129235492133107.32018-04-05 07:49:06
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000004751 / 9201
Estimated T-Level: 42.6
TF below 2^136 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver KruseC807B95D032E6E1C2013
Verified (Factored)2017-10-12kkmrkkblmbrbkC807B95D032E6E1C2830613
Verified2018-04-08Oliver Kruse4C7B6B7DAE432D0F32137753
Verified2018-04-09kkmrkkblmbrbk4C7B6B7DAE432D0F3689453
History
DateUserTypeResult
2024-11-17masserNF-PP1
Start=2/7, B1=100000000, B2=99900000000
2024-11-15masserNF-PP1
Start=153/31, B1=100000000, B2=99900000000
2024-11-12masserNF-PP1
Start=6/5, B1=100000000, B2=99900000000
2023-07-21Oliver KruseNF-PM1
B1=10000000000, B2=1427260726791900
2023-04-11nordiNF-PM1
B1=8000000000
2018-04-09kkmrkkblmbrbkC-PRP
M23743/115034692543/1906792784290591751/203007375622513572351321292354921 : 4C7B6B7DAE432D0F
PRP: Verified
PRP without proof (small exponent)
2018-04-08Oliver KruseC-PRP
M23743/115034692543/1906792784290591751/203007375622513572351321292354921 : 4C7B6B7DAE432D0F
PRP: Verified
PRP without proof (small exponent)
2018-04-05kkmrkkblmbrbkF-ECM
Factor: 203007375622513572351321292354921 / (ECM curve 586, B1=1000000, B2=100000000)
2017-10-12kkmrkkblmbrbkC-PRP
M23743/115034692543/1906792784290591751 : C807B95D032E6E1C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M23743/115034692543/1906792784290591751 : C807B95D032E6E1C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M23743/115034692543/1906792784290591751 : C807B95D032E6E1C
PRP without proof (not generated)
2016-11-28kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12
2008-08-29-Anonymous-F-ECM
Factor: 1906792784290591751