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
252169Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
7565071722.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000602 / 640
Estimated T-Level: 29.7
TF below 2^94 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseCD26E2E3D1E8BF6C1013
Verified2017-10-12Oliver KruseCD26E2E3D1E8BF6C121545713
Verified2017-11-06kkmrkkblmbrbkCD26E2E3D1E8BF6C116305113
Verified2020-04-17Oliver KruseDA5B1CA449210998123387153
Verified2024-02-03Wentao HuangDA5B1CA449210998114290853
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M252169/7565071 : DA5B1CA449210998
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-21Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-08-22Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2021-06-04ViliamFNF-PM1
B1=50000000, B2=7150000000
2020-04-17Oliver KruseC-PRP
M252169/7565071 : DA5B1CA449210998
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M252169/7565071 : CD26E2E3D1E8BF6C
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M252169/7565071 : CD26E2E3D1E8BF6C
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M252169/7565071 : CD26E2E3D1E8BF6C
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M252169/7565071 : CD26E2E3D1E8BF6C
PRP without proof (not generated)