Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
10273Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
201034445078852139102072374.1old
6600229914120431454373046572789.12008-10-16 23:57:24
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001282 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse4571A5EEB8807B192013
Verified2017-10-02kkmrkkblmbrbk4571A5EEB8807B192013
Verified2017-10-12kkmrkkblmbrbk4571A5EEB8807B192503313
Verified2020-04-17Oliver Kruse844225920C63DBD32274753
Verified2024-07-01kkmrkkblmbrbk844225920C63DBD32983053
P-1 factors
DateFactorB1B2
2022-04-02660022991412043145437304657100000000000121968084023145360
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M10273/20103444507885213910207/660022991412043145437304657 : 844225920C63DBD3
PRP: Verified
PRP without proof (small exponent)
2022-04-02-Anonymous-F-PM1
Factor: 660022991412043145437304657 / (P-1, B1=100000000000, B2=121968084023145360)
2021-08-01ViliamFNF-PM1
B1=250000000, B2=40250000000
2020-04-17Oliver KruseC-PRP
M10273/20103444507885213910207/660022991412043145437304657 : 844225920C63DBD3
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10273/20103444507885213910207/660022991412043145437304657 : 4571A5EEB8807B19
PRP: Verified
PRP without proof (not generated)
2017-10-02kkmrkkblmbrbkC-PRP
M10273/20103444507885213910207/660022991412043145437304657 : 4571A5EEB8807B19
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10273/20103444507885213910207/660022991412043145437304657 : 4571A5EEB8807B19
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-10-16-Anonymous-F-ECM
Factor: 660022991412043145437304657