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
2347Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
205803737927.6old
178330880571134.1old
2387450340834965764006007725330123135114.2old
4738766608180693500212454758275432844938125.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000017378 / 105362
Estimated T-Level: 55.8
TF below 2^180 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseF166DA21B9221F034013
Verified2017-10-02kkmrkkblmbrbkF166DA21B9221F034013
Verified2017-12-07ATHF166DA21B9221F03464313
Verified2020-04-17Oliver Kruse1DEA3A5BC4D331204107253
Verified2024-02-03Wentao Huang1DEA3A5BC4D33120469753
History
DateUserTypeResult
2024-04-24masserNF-PM1
B1=100000000000, B2=16897610680991040
2024-02-03Wentao HuangC-PRP
M2347/205803737/17833088057/23874503408349657640060077253301231/47387666081806935002124547582754328449 : 1DEA3A5BC4D33120
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M2347/205803737/17833088057/23874503408349657640060077253301231/47387666081806935002124547582754328449 : 1DEA3A5BC4D33120
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M2347/205803737/17833088057/23874503408349657640060077253301231/47387666081806935002124547582754328449 : F166DA21B9221F03
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M2347/205803737/17833088057/23874503408349657640060077253301231/47387666081806935002124547582754328449 : F166DA21B9221F03
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2347/known_factors : F166DA21B9221F03
PRP without proof (not generated)
2016-09-09kkmrkkblmbrbkNF-PM1
B1=500000000, B2=50000000000, E=12