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
10103Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
28046938311031.4old
19393244783850468943802096892890.62008-10-16 23:57:24
1979623163099980964766625377636913357744141133.92016-10-23 15:19:45
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
Verified2017-09-20kkmrkkblmbrbk94DB7748EAAE73F13013
Verified2017-09-25George Woltman94DB7748EAAE73F13913713
Verified2017-10-02kkmrkkblmbrbk94DB7748EAAE73F13013
Verified2017-10-12kkmrkkblmbrbk94DB7748EAAE73F13193913
Verified2020-04-17Oliver KruseD73E03755BD74AA53463353
Verified2024-07-01kkmrkkblmbrbkD73E03755BD74AA53979953
P-1 factors
DateFactorB1B2
2016-10-231979623163099980964766625377636913357744110000000000306764257707616
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M10103/1939324478385046894380209689/19796231630999809647666253776369133577441/2804693831 : D73E03755BD74AA5
PRP: Verified
PRP without proof (small exponent)
2022-04-23-Anonymous-NF-PM1
B1=1000000000000, B2=1401193798255070820
2022-02-05-Anonymous-NF-PM1
B1=100000000000, B2=120626368428886320
2020-04-17Oliver KruseC-PRP
M10103/2804693831/1939324478385046894380209689/19796231630999809647666253776369133577441 : D73E03755BD74AA5
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10103/2804693831/1939324478385046894380209689/19796231630999809647666253776369133577441 : 94DB7748EAAE73F1
PRP: Verified
PRP without proof (not generated)
2017-10-02kkmrkkblmbrbkC-PRP
M10103/2804693831/1939324478385046894380209689/19796231630999809647666253776369133577441 : 94DB7748EAAE73F1
PRP: Verified
PRP without proof (not generated)
2017-09-25George WoltmanC-PRP
M10103/known_factors : 94DB7748EAAE73F1
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M10103/2804693831/1939324478385046894380209689/19796231630999809647666253776369133577441 : 94DB7748EAAE73F1
PRP: Verified
PRP without proof (not generated)
2016-10-23kkmrkkblmbrbkF-PM1
Factor: 107675888780881526412534253592573966707056673272997133564111312995139830837519 / (P-1, B1=10000000000, B2=306764257707616)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-10-16-Anonymous-F-ECM
Factor: 1939324478385046894380209689