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
640421Factored
FactorDigitsBitsDate
24335999824.5old
622328011617281591755.82014-10-14 20:49:13
210772638368408326273372374.22014-10-14 20:49:13
2325006347539288464304044325213097.62023-01-24 05:54:48
ECM
DigitsB1Curves
2550000280 / 280
30250000214 / 640
Estimated T-Level: 26.7 ⓘ
TF below 2^84 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-28Oliver Kruse68A3CD2F8BB397CC3013
Verified (Factored)2017-10-13Oliver Kruse68A3CD2F8BB397CC329281713
Verified (Factored)2017-12-16ATH68A3CD2F8BB397CC359770813
Verified (Factored)2020-04-19Oliver Kruse1A090F074A954ADB355438053
Verified2023-01-24LordJulius1A090F074A954ADB456531253
P-1 factors
DateFactorB1B2
2014-10-1462232801161728159100000030000000
2014-10-1421077263836840832627337100000030000000
2023-01-2423250063475392884643040443252117500007199692500
History
DateUserTypeResult
2023-01-24curtiscCERT
PRP Certification
Proof certified good
2023-01-24LordJuliusC-PRP
M640421/24335999/62232801161728159/21077263836840832627337/232500634753928846430404432521 : 1A090F074A954ADB
PRP proof power = 6
PRP: Verified
Proof certified good
2023-01-24USAFSSF-PM1
Factor: 232500634753928846430404432521 / (P-1, B1=1750000, B2=7199692500)
2020-04-19Oliver KruseC-PRP
M640421/24335999/62232801161728159/21077263836840832627337 : 1A090F074A954ADB
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-12-16ATHC-PRP
M640421/24335999/62232801161728159/21077263836840832627337 : 68A3CD2F8BB397CC
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M640421/24335999/62232801161728159/21077263836840832627337 : 68A3CD2F8BB397CC
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M640421/24335999/62232801161728159/21077263836840832627337 : 68A3CD2F8BB397CC
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M640421/24335999/62232801161728159/21077263836840832627337 : 68A3CD2F8BB397CC
PRP without proof (not generated)
2014-10-14alpertronF-PM1
Factor: 1311697169391399082660914917783346082583 / (P-1, B1=1000000, B2=30000000, E=12)