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
2819Factored
FactorDigitsBitsDate
5639412.5old
198947560983863344469800452354038431621832943140.52017-03-06 07:40:12
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003372 / 16550
Estimated T-Level: 46.0 ⓘ
TF below 2^148 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse5CB9BD012F2663E62013
Verified2017-10-02kkmrkkblmbrbk5CB9BD012F2663E62013
Verified2017-12-07ATH5CB9BD012F2663E6278713
Verified2020-04-17Oliver Kruse2ACAA59F6EEB4360238453
Verified (Factored)2022-05-12Jorge Coveiro2ACAA59F6EEB43601174253
Verified2024-02-03Wentao Huang2ACAA59F6EEB4360223053
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M2819/5639/1989475609838633444698004523540384316218329 : 2ACAA59F6EEB4360
PRP: Verified
PRP without proof (small exponent)
2022-05-12Jorge CoveiroC-PRP
M2819/5639 : 2ACAA59F6EEB4360
PRP: Verified
PRP without proof (small exponent)
2022-03-28mikrNF-PM1
B1=70000000000, B2=367004699921960100
2021-07-06ViliamFNF-PM1
B1=1000000000, B2=191000000000
2020-04-17Oliver KruseC-PRP
M2819/5639/1989475609838633444698004523540384316218329 : 2ACAA59F6EEB4360
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M2819/5639/1989475609838633444698004523540384316218329 : 5CB9BD012F2663E6
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M2819/5639/1989475609838633444698004523540384316218329 : 5CB9BD012F2663E6
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2819/known_factors : 5CB9BD012F2663E6
PRP without proof (not generated)
2017-03-06treborF-ECM
Factor: 1989475609838633444698004523540384316218329 / (ECM curve 3000, B1=11000000, B2=100000000000)