is 2 8211461 - 1
has 2471897 decimal digits
takes 2.144 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2673.618665.6716%----3.618665.6716%0.0000%
PrimeNet2630.194463.4921%360009000000.03153.6206%0.225864.8139%1.3218%
GPU722673.618665.6716%5500013000000.04652.6270%3.665166.5735%0.9018%
Difference----55000-1300000-0.0465-2.6270%-0.0465-0.9018%-0.9018%

Known prime factors (1 factor, 29.4 bits, 0.00035798% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8211461706185647929.39543
43
-1438.791e-121.245e-61.603e-6

P-1 results:
No P-1 results for M8211461


Trial Factoring results:
No TF results for M8211461


ECM factoring results:
No ECM results for M8211461


Lucas-Lehmer results:
No L-L results for M8211461


PRP results:
dateuseridcompidcofactorsres64PRP
2018-09-22T19:25:28Oliver KruseGTX-4
706185647
CB1F4AE4DEBEFD__no
2020-03-20T16:20:07oodairacom2
706185647
CB1F4AE4DEBEFD27no


P-1 factor-bounds graph:
100
101
100
101
102
103
TF factor-bounds graph:
267
220
230
240
250
260
270
280
290
2100
Last modified: 2020-03-20T16:20:07+00:00