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:





MnDetails
383838383
Composite: proven not-prime with Lucas-Lehmer test
No factors below 283
TF target 281
P-1
B1 = 8383838
B2 = 383838383
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Verified2013-03-08Never Odd Or Even69D8FD819D46CEA4286471110Windows 64-bit,Prime95,v27.7,build 3
Verified2013-03-08Never Odd Or Even69D8FD819D46CEA4175899671Windows 64-bit,Prime95,v27.7,build 2
Verified2015-07-20MadPoo 🙂69D8FD819D46CEA411826605Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2019-11-21wazumaNFno factor TF: 1-68
2015-07-20MadPoo 🙂C-LL69D8FD819D46CEA4
2013-03-08Never Odd Or EvenC-LL69D8FD819D46CEA4
2013-03-08Never Odd Or EvenC-LL69D8FD819D46CEA4
2012-04-09Never Odd Or EvenNFno factor TF: 82-83
2012-03-23Never Odd Or EvenNF-PM1B1=8383838, B2=383838383
2012-02-20Never Odd Or EvenNF-PM1B1=8383838, B2=380000000
2012-02-09Never Odd Or EvenNFno factor TF: 81-82
2012-02-05Never Odd Or EvenNF-PM1B1=8383838, B2=370000000
2012-01-16Never Odd Or EvenNF-PM1B1=8383838, B2=360000000
2012-01-15Never Odd Or EvenNF-PM1B1=8383838, B2=350000000
2011-12-27Never Odd Or EvenNF-PM1B1=8383838, B2=340000000
2011-12-27Never Odd Or EvenNF-PM1B1=8383838, B2=330000000
2011-12-08Never Odd Or EvenNF-PM1B1=8383838, B2=320000000
2011-12-04Never Odd Or EvenNF-PM1B1=8383838, B2=310000000
2011-12-02Never Odd Or EvenNF-PM1B1=8383838, B2=300000000
2011-11-22Never Odd Or EvenNF-PM1B1=8383838, B2=290000000
2011-11-19Never Odd Or EvenNFno factor TF: 80-81
2011-11-15Never Odd Or EvenNF-PM1B1=8383838, B2=280000000
2011-11-04Never Odd Or EvenNF-PM1B1=8383838, B2=270000000
2011-11-03Never Odd Or EvenNF-PM1B1=8383838, B2=260000000
2011-10-22Never Odd Or EvenNFno factor TF: 79-80
2011-10-05Never Odd Or EvenNF-PM1B1=8383838, B2=250000000
2011-10-03Never Odd Or EvenNF-PM1B1=8383838, B2=240000000
2011-10-02Never Odd Or EvenNF-PM1B1=8383838, B2=230000000
2011-10-01Never Odd Or EvenNF-PM1B1=8383838, B2=220000000
2011-09-28Never Odd Or EvenNFno factor TF: 78-79
2011-09-28Never Odd Or EvenNF-PM1B1=8383838, B2=210000000
2011-09-28Never Odd Or EvenNF-PM1B1=8383838, B2=200000000
2011-09-27Never Odd Or EvenNF-PM1B1=8383838, B2=190000000
2011-09-26Never Odd Or EvenNF-PM1B1=8383838, B2=180000000
2011-09-25Never Odd Or EvenNF-PM1B1=8383838, B2=170000000
2011-09-24Never Odd Or EvenNF-PM1B1=8383838, B2=160000000
2011-09-24Never Odd Or EvenNF-PM1B1=8383838, B2=150000000
2011-09-23Never Odd Or EvenNF-PM1B1=8383838, B2=140000000
2011-09-22Never Odd Or EvenNF-PM1B1=8383838, B2=130000000
2011-09-21Never Odd Or EvenNF-PM1B1=8383838, B2=120000000
2011-09-21Never Odd Or EvenNF-PM1B1=8383838, B2=110000000
2011-09-20Never Odd Or EvenNF-PM1B1=8383838, B2=100000000
2011-09-19Never Odd Or EvenNF-PM1B1=8383838, B2=90000000
2011-09-18Never Odd Or EvenNF-PM1B1=8383838, B2=80000000
2011-09-17Never Odd Or EvenNF-PM1B1=8383838, B2=70000000
2011-09-16Never Odd Or EvenNF-PM1B1=8383838, B2=60000000
2011-09-15Never Odd Or EvenNF-PM1B1=8383838, B2=50000000
2011-09-14Never Odd Or EvenNF-PM1B1=8383838, B2=40000000
2011-09-13Never Odd Or EvenNF-PM1B1=8383838, B2=30000000
2011-09-12Never Odd Or EvenNF-PM1B1=8383838, B2=20000000
2011-09-12Never Odd Or EvenNF-PM1B1=8383838, B2=10000000
2011-09-11Never Odd Or EvenNF-PM1B1=8383838
2011-09-11Never Odd Or EvenNF-PM1B1=8250000
2011-09-10Never Odd Or EvenNF-PM1B1=8000000
2011-09-10Never Odd Or EvenNF-PM1B1=7750000
2011-09-09Never Odd Or EvenNF-PM1B1=7500000
2011-09-08Never Odd Or EvenNF-PM1B1=7250000
2011-09-08Never Odd Or EvenNF-PM1B1=7000000
2011-09-07Never Odd Or EvenNF-PM1B1=6750000
2011-09-07Never Odd Or EvenNF-PM1B1=6500000
2011-09-06Never Odd Or EvenNF-PM1B1=6250000
2011-09-05Never Odd Or EvenNF-PM1B1=6000000
2011-09-05Never Odd Or EvenNF-PM1B1=5750000
2011-09-04Never Odd Or EvenNF-PM1B1=5500000
2011-09-03Never Odd Or EvenNF-PM1B1=5250000
2011-09-03Never Odd Or EvenNF-PM1B1=5000000
2011-09-02Never Odd Or EvenNF-PM1B1=4750000
2011-09-02Never Odd Or EvenNF-PM1B1=4500000
2011-09-01Never Odd Or EvenNF-PM1B1=4250000
2011-08-31Never Odd Or EvenNF-PM1B1=4000000
2011-08-31Never Odd Or EvenNF-PM1B1=3750000
2011-08-31Never Odd Or EvenNF-PM1B1=3500000
2011-08-31Never Odd Or EvenNFno factor TF: 77-78
2011-08-29Never Odd Or EvenNF-PM1B1=3250000
2011-08-29Never Odd Or EvenNF-PM1B1=3000000
2011-08-28Never Odd Or EvenNF-PM1B1=2750000
2011-08-28Never Odd Or EvenNF-PM1B1=2500000
2011-08-28Never Odd Or EvenNF-PM1B1=2250000
2011-08-26Never Odd Or EvenNF-PM1B1=2000000
2011-08-26Never Odd Or EvenNF-PM1B1=1750000
2011-08-25Never Odd Or EvenNF-PM1B1=1500000
2011-08-20Never Odd Or EvenNF-PM1B1=1250000
2011-07-20Never Odd Or EvenNFno factor TF: 76-77
2011-06-26Never Odd Or EvenNFno factor TF: 75-76
2011-05-21Never Odd Or EvenNFno factor TF: 74-75
2011-05-02Never Odd Or EvenNFno factor TF: 73-74
2011-04-29Never Odd Or EvenNFno factor TF: 72-73
2011-04-19Never Odd Or EvenNF-PM1B1=1000000
2011-04-15Never Odd Or EvenNF-PM1B1=900000
2011-03-29Never Odd Or EvenNF-PM1B1=750000
2011-03-29Never Odd Or EvenNF-PM1B1=721000
2011-03-28Never Odd Or EvenNF-PM1B1=588400
2011-03-27Never Odd Or EvenNF-PM1B1=501300
2010-08-15Never Odd Or EvenNF-PM1B1=500000
2010-08-14Never Odd Or EvenNF-PM1B1=450000
2010-08-11Never Odd Or EvenNF-PM1B1=430000
2010-08-08Never Odd Or EvenNF-PM1B1=375000
2010-08-07Never Odd Or EvenNF-PM1B1=350000
2010-08-06Never Odd Or EvenNF-PM1B1=325000
2010-08-05Never Odd Or EvenNF-PM1B1=300000
2010-08-03Never Odd Or EvenNF-PM1B1=250000
2010-08-02Never Odd Or EvenNF-PM1B1=225000
2010-08-01Never Odd Or EvenNF-PM1B1=200000
2010-07-29Never Odd Or EvenNF-PM1B1=150000
2010-07-27Never Odd Or EvenNFno factor TF: 71-72
2010-07-26Never Odd Or EvenNF-PM1B1=100000
2010-07-23Never Odd Or EvenNF-PM1B1=50000
2010-07-22Never Odd Or EvenNF-PM1B1=10000
2010-07-13Never Odd Or EvenNFno factor TF: 70-71
2010-06-15Never Odd Or EvenNFno factor TF: 69-70
2010-04-29Never Odd Or EvenNFno factor TF: 68-69
2010-04-29Never Odd Or EvenNFno factor TF: 67-68
2010-04-29Never Odd Or EvenNFno factor TF: 66-67
2010-04-29Never Odd Or EvenNFno factor TF: 65-66
2010-04-28Never Odd Or EvenNFno factor TF: 64-65