is 2 84374011 - 1
has 25399109 decimal digits
takes 263.288 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
Actual276181.382864.4737 %675000129937506.09103.4048 %187.473865.6833 %
Target27590.690364.0000 %5500009500000025.77233.9405 %116.462665.4186 %
Difference+1+90.6924+0.4737 %+125000-82006250-19.6813-0.5357 %+71.0112+0.2647 %

Known prime factors (1 factor, 77.7 bits, 0.00009212% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
843740112505085077712364237025192477.7291484512261549569
33 × 7 × 839 × 1931 × 4848169
2017-11-1619314848169509.521.20342.2322

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-11-16Brian Beuninghp8300f67500012993750622477.7296.0913.754%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-07Architects Cubedm1_072642650.044
2012-08-16Carsten KossendeyManual testing2652660.089
2013-02-19Juergen KampmeierManual testing2662670.177
2013-02-19peterhManual testing2672680.354
2013-12-29firereddont12682690.709
2014-01-15roemer2201HPCC2692701.417
2014-08-12GrunwalderGIMPcompute-0-52702712.834
2017-01-20Judge HaleManual testing27127317.00
2017-04-24TheJudgerManual testing273276158.7


ECM factoring results:
No ECM results for M84374011


Lucas-Lehmer results:
No L-L results for M84374011


PRP results:
No PRP results for M84374011


CERT results:
No CERT results for M84374011


P-1 factor-bounds graph:
B1 = 675000, B2 = 12993750 (P-1 stage 2)
B1 = 675000 (P-1 stage 1)
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108
TF factor-bounds graph:
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270
269
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267
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265
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00