is 2 83064977 - 1
has 25005050 decimal digits
takes 259.203 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
Actual27592.119664.0000 %710000143775006.58183.8476 %98.701465.3851 %
Target27592.119664.0000 %5500009000000024.53973.8927 %116.659265.4014 %
Difference---+160000-75622500-17.9578-0.0452 %-17.9578-0.0163 %

Known prime factors (1 factor, 75.6 bits, 0.00009102% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
83064977573633717794247768597912375.603345292166754135
32 × 5 × 41 × 19333 × 9680351
2016-04-05193339680351137.882.46914.4571

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-04-05laleraManual testing710000143775001222375.6037.6403.848%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-19Architects Cubedm1_412642650.045
2011-03-27albin_pouillesoffice2652660.090
2013-06-18Juergen KampmeierManual testing2662670.180
2013-08-29ANONYMOUS2672680.360
2014-01-20Carsten KossendeyManual testing2682690.720
2014-02-02CSLatDDikenny-242692701.439
2014-03-11SRS TechnologyManual testing2702728.636
2016-04-04laleraManual testing27227580.61


ECM factoring results:
No ECM results for M83064977


Lucas-Lehmer results:
No L-L results for M83064977


PRP results:
No PRP results for M83064977


CERT results:
No CERT results for M83064977


P-1 factor-bounds graph:
B1 = 710000, B2 = 14377500 (P-1 stage 2)
B1 = 710000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
275
272
270
269
268
267
266
265
this exponent TF target: 75
TF double-checked to: 67
250
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Last modified: 2024-03-13T02:15:48+00:00