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
1984163Factored
FactorDigitsBitsDate
29206879371031.4old
82238255499812471652.92014-08-27 11:35:50
1880973739765246370332167.42021-06-08 14:36:25
ECM
DigitsB1Curves
2550000280 / 280
3025000058 / 640
Estimated T-Level: 25.5 ⓘ
TF below 2^80 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-05Oliver KruseA3E85F2B0768B1092013
Verified (Factored)2017-11-15kkmrkkblmbrbkA3E85F2B0768B1092154934413
Verified2021-06-10kutens964A3340EC1E50663113288753
History
DateUserTypeResult
2022-09-22Barney_JrF-ECM
Factor: 2920687937 / (ECM curve 1, B1=250000, B2=37500000, Sigma=8837917496512625)
2022-08-14USAFSSNF-PM1
B1=132000, B2=134381520
2021-06-10Choi4KANGCERT
PRP Certification
Proof certified good
2021-06-10kutensC-PRP
M1984163/2920687937/8223825549981247/188097373976524637033 : 964A3340EC1E5066
PRP proof power = 7
PRP: Verified
Proof certified good
2021-06-08_p95holder_F-ECM
Factor: 188097373976524637033 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-15kkmrkkblmbrbkC-PRP
M1984163/2920687937/8223825549981247 : A3E85F2B0768B109
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1984163/2920687937/8223825549981247 : A3E85F2B0768B109
PRP: Verified (Factored)
PRP without proof (not generated)
2014-08-27TJAOIF
Factor: 8223825549981247