is 2 80419883 - 1
has 24208798 decimal digits
takes 250.949 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
Actual27595.149564.0000 %675000135000006.21583.7610 %101.365265.3540 %
Target27595.149564.0000 %5000008500000023.09323.7853 %118.242665.3627 %
Difference---+175000-71500000-16.8774-0.0242 %-16.8774-0.0087 %

Known prime factors (1 factor, 83.5 bits, 0.00010385% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
80419883138470364315258090035861772683.51886092119976883136
26 × 3 × 23 × 569 × 16573 × 2067383
2017-04-0916573206738333,0900.58060.9519

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-04-09Sid & AndyEmperor_Zurg67500013500000622683.5186.2163.761%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-09Architects Cubedm1_f22642650.046
2011-08-10Carsten KossendeyManual testing2652660.093
2013-01-26phoenicisManual testing2662670.186
2013-02-16ArtfulDodgerDodger-12672680.372
2013-02-22ArtfulDodgerDodger-12682690.743
2013-02-26ITSCP_-_ArcherOffice2692701.487
2013-06-02processinfoManual testing2702712.973
2016-04-15David CampeauManual testing27127317.84
2016-10-16TheJudgerManual testing27327571.36


ECM factoring results:
No ECM results for M80419883


Lucas-Lehmer results:
No L-L results for M80419883


PRP results:
No PRP results for M80419883


CERT results:
No CERT results for M80419883


P-1 factor-bounds graph:
B1 = 675000, B2 = 13500000 (P-1 stage 2)
B1 = 675000 (P-1 stage 1)
103
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108
TF factor-bounds graph:
275
273
271
270
269
268
267
266
265
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00