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
5519Factored
FactorDigitsBitsDate
662281619.3old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000005727 / 16550
Estimated T-Level: 46.7 ⓘ
TF below 2^150 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse13077A7BEC6BEA4B1013
Verified2017-10-12kkmrkkblmbrbk13077A7BEC6BEA4B188013
Verified2020-04-17Oliver Kruse4CC9BEFEC6A07F1E1520653
Verified2024-02-03Wentao Huang4CC9BEFEC6A07F1E1271253
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M5519/662281 : 4CC9BEFEC6A07F1E
PRP: Verified
PRP without proof (small exponent)
2023-07-12-Anonymous-NF-PM1
B1=45000000000, B2=181622797963056450
2022-01-24Ethan O'ConnorNF-PM1
B1=1300000000
2021-12-16Oliver KruseNF-PM1
B1=1000000000, B2=1002106985940060
2021-12-14Lisander ViaeneNF-PM1
B1=1000000, B2=57744146009550
2020-04-17Oliver KruseC-PRP
M5519/662281 : 4CC9BEFEC6A07F1E
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M5519/662281 : 13077A7BEC6BEA4B
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M5519/662281 : 13077A7BEC6BEA4B
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M5519/662281 : 13077A7BEC6BEA4B
PRP without proof (not generated)