is 2 84874343 - 1
has 25549724 decimal digits
takes 264.849 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
Actual276180.313564.4737 %6800006800003.07681.4196 %183.390364.9780 %
Target27590.155764.0000 %5500009500000025.77233.9434 %115.928065.4196 %
Difference+1+90.1578+0.4737 %+130000-94320000-22.6955-2.5238 %+67.4624-0.4416 %

Known prime factors (1 factor, 80.0 bits, 0.00009430% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8487434312388356977936376177357292580.0357298057657975848
23 × 97 × 461 × 90217 × 226129
2017-12-06902172261292,977.50.44170.8308

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-12-06EthanDFaraday68000068000012580.0353.0771.594%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-22Architects Cubedm1_732642650.044
2012-08-13Carsten KossendeyManual testing2652660.088
2013-06-13willmoreManual testing2662670.176
2014-04-10Preben SManual testing2672680.352
2014-08-14Ryan PropperManual testing2682702.113
2014-11-25wombatmanManual testing2702712.817
2017-02-14Judge HaleManual testing27127316.90
2017-05-12ANONYMOUSManual testing27327422.54
2017-06-14Brian BeuningManual testing27427545.08
2017-06-25TheJudgerManual testing27527690.16


ECM factoring results:
No ECM results for M84874343


Lucas-Lehmer results:
No L-L results for M84874343


PRP results:
No PRP results for M84874343


CERT results:
No CERT results for M84874343


P-1 factor-bounds graph:
B1 = 680000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
275
274
273
271
270
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