is 2 84703321 - 1
has 25498241 decimal digits
takes 264.316 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
Actual276180.677664.4737 %6750006750003.05421.4145 %183.731864.9762 %
Target27590.337864.0000 %5500009500000025.77233.9424 %116.110065.4193 %
Difference+1+90.3399+0.4737 %+125000-94325000-22.7181-2.5279 %+67.6218-0.4431 %

Known prime factors (1 factor, 85.7 bits, 0.00010115% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
84703321617445773976901569223036972685.675364475540443627688
23 × 173 × 6073 × 108827 × 398467
2017-11-26108827398467169,5580.56381.0021

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-11-26TheJudgerManual testing67500067500012685.6753.5451.589%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-09Architects Cubedm1_812642650.044
2012-08-19Carsten KossendeyManual testing2652660.088
2013-08-26Fabrice Belletlinux102662670.176
2013-08-30Fabrice Belletlinux102672680.353
2014-01-26AdolfNorManual testing2682690.706
2014-04-01SWL551Manual testing2692701.412
2015-08-16monstManual testing2702712.823
2017-02-03Judge HaleManual testing27127316.94
2017-05-05ANONYMOUSManual testing27327422.59
2017-05-28Brian BeuningManual testing27427545.17
2017-06-19ATHManual testing27527690.34


ECM factoring results:
No ECM results for M84703321


Lucas-Lehmer results:
No L-L results for M84703321


PRP results:
No PRP results for M84703321


CERT results:
No CERT results for M84703321


P-1 factor-bounds graph:
B1 = 675000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
276
275
274
273
271
270
269
268
267
266
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00