is 2 85434917 - 1
has 25718473 decimal digits
takes 275.172 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
Actual276179.130464.4737 %6900006900003.22241.4303 %182.352964.9818 %
Target27589.564264.0000 %5500009500000026.60103.9466 %116.165265.4208 %
Difference+1+89.5663+0.4737 %+140000-94310000-23.3786-2.5163 %+66.1877-0.4390 %

Known prime factors (1 factor, 93.7 bits, 0.00010964% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
85434917157830013615240880593376437272993.67292368564959945405339
33 × 13 × 43 × 127 × 271 × 4003 × 4289 × 10357
2018-04-2442891035741,363,1310.02160.0408

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-04-24NesowaIceblock69000069000012993.6723.2221.606%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-26Architects Cubedm1_f22642650.044
2013-02-25SMoffatManual testing2652680.612
2013-02-26SMoffatManual testing2682690.700
2014-04-09hkskypManual testing2692701.399
2015-08-23monstManual testing2702712.799
2017-02-20Judge HaleManual testing27127316.79
2017-04-17ANONYMOUSManual testing27327422.39
2017-09-01The MawnManual testing27427544.78
2017-09-03One ManManual testing27527689.57


ECM factoring results:
No ECM results for M85434917


Lucas-Lehmer results:
No L-L results for M85434917


PRP results:
No PRP results for M85434917


CERT results:
No CERT results for M85434917


P-1 factor-bounds graph:
B1 = 690000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
276
275
274
273
271
270
269
268
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00