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
7687Composite, with 5 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
445847618.8old
15819310556161964471960.5old
426967509939559109123692375.2old
1494205002322952517998448868973096.9old
133859492272577435063033440189731100.1old
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 Kruse0A41C0BCD0D9F3805013
Verified2017-10-02kkmrkkblmbrbk0A41C0BCD0D9F3805013
Verified2017-12-07ATH0A41C0BCD0D9F380574913
Verified2020-04-17Oliver Kruse3BC07848A6CE1CA55533953
Verified2024-02-03Wentao Huang3BC07848A6CE1CA55664853
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M7687/445847/1581931055616196447/42696750993955910912369/149420500232295251799844886897/1338594922725774350630334401897 : 3BC07848A6CE1CA5
PRP: Verified
PRP without proof (small exponent)
2021-07-08ViliamFNF-PM1
B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M7687/445847/1581931055616196447/42696750993955910912369/149420500232295251799844886897/1338594922725774350630334401897 : 3BC07848A6CE1CA5
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M7687/445847/1581931055616196447/42696750993955910912369/149420500232295251799844886897/1338594922725774350630334401897 : 0A41C0BCD0D9F380
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M7687/445847/1581931055616196447/42696750993955910912369/149420500232295251799844886897/1338594922725774350630334401897 : 0A41C0BCD0D9F380
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7687/known_factors : 0A41C0BCD0D9F380
PRP without proof (not generated)