is 2 57001667 - 1
has 17159212 decimal digits
takes 120.812 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2681.045761.7647 %----1.045761.7647 %
Target27333.557764.3836 %4000006500000012.04574.0684 %45.603365.8326 %
Difference-5-32.5120-2.6189 %-400000-65000000-12.0457-4.0684 %-44.5577-4.0679 %

Known prime factors (1 factor, 72.5 bits, 0.00012724% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5700166768166364462700359861512272.53059793307854225
3 × 52 × 11 × 257 × 587 × 480427
2011-09-0458748042722.1710.08210.1502

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-09-04Scott CrawfordClyde2272.5302.0900.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-01ANONYMOUSv4_computers212532.11000e-5
2000-02-16ANONYMOUSv4_computers212544.21000e-5
2000-04-05ANONYMOUSv4_computers212560.000
2001-08-24ANONYMOUSv4_computers212570.000
2002-10-19ANONYMOUSv4_computers212580.001
2003-07-30Team Prime Ribv4_computers212600.001
2022-06-27LordJuliusManual testing260263
2008-08-31Sturle Sundemorovan.ifi2632640.033
2008-09-02James HeinrichWHS2642650.066
2008-09-03Sturle Sundedoak.ifi2652660.131
2008-09-05Sturle Sundefungo.ifi2662670.262
2009-05-25David Barleyken22672680.524


ECM factoring results:
No ECM results for M57001667


Lucas-Lehmer results:
No L-L results for M57001667


PRP results:
No PRP results for M57001667


CERT results:
No CERT results for M57001667


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
TF factor-bounds graph:
268
267
266
265
264
263
260
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00