is 2 7064693 - 1
has 2126685 decimal digits
takes 1.540 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L0DCA205192B4431Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.206065.6716 %8500015300000.05182.9034 %4.257766.6683 %
Target2674.206065.6716 %4500050000000.09962.3033 %4.305666.4623 %
Difference---+40000-3470000-0.0478+0.6001%-0.0478+0.2060 %

Known prime factors (1 factor, 71.7 bits, 0.00101437% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
706469337360069951250166282412271.662264413966404840
23 × 5 × 7 × 67 × 479 × 29424971
2017-06-184792942497167.6710.50700.9467

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-10-27Will Edgingtonv4_computers35000437500--0.0181.747%
2012-01-05bcp19Manual testing8500015300006--0.0522.903%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-06-01ANONYMOUSv4_computers212620.043
1998-08-09ANONYMOUSv4_computers212620.043
2001-10-25Will Edgingtonv4_computers212630.139
2014-02-06NesowaManual testing2632640.278
2014-02-10lycornManual testing2642650.529
2015-06-16VictordeHollanderManual testing2652661.058
2016-08-17kkmrkkblmbrbkManual testing2662672.116


ECM factoring results:
Total ECM effort:1.989 GHz-days
Estimated T-Level:1.154
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.995
50000500000030.995


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-23ANONYMOUSv4_computers0DCA205192B4431E1.541
2002-02-03Will Edgingtonv4_computers0DCA205192B4431E1.541


PRP results:
dateuseridcompidcofactorsres64
2018-02-08Massimo Cappelli (ik5pwa)Maxwin10-Old-Pappio
3736006995125016628241
BDE74574C6288CE2
2019-03-13Yizhe Huangvm
3736006995125016628241
BDE74574C6288CE2


CERT results:
No CERT results for M7064693


P-1 factor-bounds graph:
B1 = 85000, B2 = 1530000 (P-1 stage 2)
B1 = 85000 (P-1 stage 1)
B1 = 35000, B2 = 437500 (P-1 stage 2)
B1 = 35000 (P-1 stage 1)
101
102
103
104
105
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
266
265
264
263
262
this exponent TF target: 67
TF double-checked to: 67
ECM T-Level=1.15 ~= -13-bit
250
260
270
280
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Last modified: 2024-02-09T03:30:02+00:00