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
3407Factored
FactorDigitsBitsDate
138685343927.0old
285171115078333053672064.6old
3637429679752974414912903132788.2old
19387615735146212056837325082148209736117.22009-05-06 01:51:56
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000014714 / 40830
Estimated T-Level: 51.8 ⓘ
TF below 2^167 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse255223D1773DB9884013
Verified2017-10-02kkmrkkblmbrbk255223D1773DB9884013
Verified2017-12-07ATH255223D1773DB98844713
Verified2020-04-17Oliver Kruse41C1768150ECD3764263653
Verified2024-02-03Wentao Huang41C1768150ECD376450753
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M3407/138685343/28517111507833305367/363742967975297441491290313/193876157351462120568373250821482097 : 41C1768150ECD376
PRP: Verified
PRP without proof (small exponent)
2021-09-02Jinyuan WangNF-PM1
B1=1300000000, B2=130000000000, E=12
2020-04-17Oliver KruseC-PRP
M3407/138685343/28517111507833305367/363742967975297441491290313/193876157351462120568373250821482097 : 41C1768150ECD376
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M3407/138685343/28517111507833305367/363742967975297441491290313/193876157351462120568373250821482097 : 255223D1773DB988
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M3407/138685343/28517111507833305367/363742967975297441491290313/193876157351462120568373250821482097 : 255223D1773DB988
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M3407/known_factors : 255223D1773DB988
PRP without proof (not generated)
2009-05-06unconnectedF-ECM
Factor: 193876157351462120568373250821482097