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
7283Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
102267887926.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000002050 / 9201
Estimated T-Level: 41.1
TF below 2^132 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse26664057040DCB101013
Verified2017-10-12kkmrkkblmbrbk26664057040DCB101115113
Verified2020-04-17Oliver Kruse9F43A6F4AA45EACF1351953
Verified2024-02-03Wentao Huang9F43A6F4AA45EACF1101253
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M7283/102267887 : 9F43A6F4AA45EACF
PRP: Verified
PRP without proof (small exponent)
2023-08-30-Anonymous-NF-PM1
B1=33000000000, B2=136591402877229300
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2020-04-17Oliver KruseC-PRP
M7283/102267887 : 9F43A6F4AA45EACF
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M7283/102267887 : 26664057040DCB10
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7283/102267887 : 26664057040DCB10
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7283/102267887 : 26664057040DCB10
PRP without proof (not generated)