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
1707983Factored
FactorDigitsBitsDate
3415967721.7old
2794960932953798739432167.92019-05-13 05:10:00
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-30alpertronE3DA3F68EE1121BB1013
Verified (Factored)2017-10-18Oliver KruseE3DA3F68EE1121BB121347513
Verified2019-05-15_p95holder_AB2024CC9DC76DD0293014253
Verified2019-05-15francijezekAB2024CC9DC76DD0234743653
Verified2019-05-16kkmrkkblmbrbkAB2024CC9DC76DD02137013753
History
DateUserTypeResult
2021-07-17Dylan DelgadoNF-PM1
B1=3000000, B2=273000000
2019-05-16kkmrkkblmbrbkC-PRP
M1707983/3415967/279496093295379873943 : AB2024CC9DC76DD0
PRP: Verified
PRP without proof (not generated)
2019-05-15francijezekC-PRP
M1707983/3415967/279496093295379873943 : AB2024CC9DC76DD0
PRP: Verified
PRP without proof (not generated)
2019-05-15_p95holder_C-PRP
M1707983/3415967/279496093295379873943 : AB2024CC9DC76DD0
PRP: Verified
PRP without proof (not generated)
2019-05-13Chang Chia-TcheF-ECM
Factor: 279496093295379873943 / (ECM curve 3, B1=50000, B2=5000000)
2017-10-18Oliver KruseC-PRP
M1707983/3415967 : E3DA3F68EE1121BB
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1707983/3415967 : E3DA3F68EE1121BB
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12