is 2 84821707 - 1
has 25533879 decimal digits
takes 264.685 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
Actual276180.425464.4737 %6650006650003.00891.4054 %183.434464.9730 %
Target27590.211764.0000 %5500009500000025.77233.9431 %115.983965.4195 %
Difference+1+90.2138+0.4737 %+115000-94335000-22.7633-2.5378 %+67.4504-0.4466 %

Known prime factors (1 factor, 103.6 bits, 0.00012213% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
848217071533900782175355386189368111603332103.59790419117725098092295488
26 × 29 × 349 × 727 × 22567 × 30517 × 278809
2017-12-03305172788091.849e+90.19930.2810

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-12-03cpp1701wu665000665000132103.5973.0091.579%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-03Architects Cubedm1_sa2642650.044
2012-08-17Carsten KossendeyManual testing2652660.088
2013-06-17scotttybLIC7802662670.176
2013-06-18C.D.B.E8400_3600MHz2672680.352
2013-06-18processinfoManual testing2682690.705
2013-10-17GrunwalderGIMPcompute-0-62692701.410
2014-08-15zulianM812702712.819
2017-02-10Judge HaleManual testing27127316.92
2017-05-19ANONYMOUSManual testing27327422.55
2017-06-11TheJudgerManual testing274276135.3


ECM factoring results:
No ECM results for M84821707


Lucas-Lehmer results:
No L-L results for M84821707


PRP results:
No PRP results for M84821707


CERT results:
No CERT results for M84821707


P-1 factor-bounds graph:
B1 = 665000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
274
273
271
270
269
268
267
266
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
2100
2110
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Last modified: 2024-03-13T02:15:48+00:00