is 2 1799453 - 1
has 541690 decimal digits
takes 0.098 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L368CEBC04105FB29double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26716.512868.6567 %2980000549120495023.755613.3607 %40.268372.8444 %
Target2610.170765.5738 %90006500000.00351.5543 %0.174266.1088 %
Difference+6+16.3420+3.0829 %+2971000+5490554950+23.7521+11.8064%+40.0942+6.7355 %

Known prime factors (1 factor, 76.6 bits, 0.00425888% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
17994531174683501676356351108072476.63732640016207046151
3 × 131 × 577 × 304663 × 472457
2015-06-1830466347245714,5630.02470.0488

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-02-09Carsten Kossendeymother10000016500006--0.0154.917%
2014-05-09JossManual testing135669135669--0.0112.339%
2014-09-19JossManual testing171338171338--0.0132.591%
2015-06-18mikrMSI2475400247540012476.6370.1956.413%
2023-04-17Kevin_9611Factor_229800005491204950
skipped known factor: 117468350167635635110807
--28.7919.667%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-01-25ANONYMOUSv4_computers212580.021
2010-04-19Architects Cubeda3_bu22602610.085
2010-12-13GrunwalderGIMPManual testing212630.887
2015-05-15snme2pm1Manual testing2632653.167


ECM factoring results:
Total ECM effort:38.593 GHz-days
Estimated T-Level:25.717
DigitsB1CompleteFacMiss
201100014.8230.000%
25500001.68418.567%
302500000.14386.638%
3510000000.01099.012%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025817.68
250000400000004920.91


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-12-21carlo_baffav4_computers368CEBC04105FB290.098


PRP results:
dateuseridcompidcofactorsres64
2017-10-03Oliver KruseGTX-2
117468350167635635110807
962AAB97E6F61C7D
2017-11-05kkmrkkblmbrbkc4.xlarge
117468350167635635110807
962AAB97E6F61C7D


CERT results:
No CERT results for M1799453


P-1 factor-bounds graph:
B1 = 2980000, B2 = 5491204950 (P-1 stage 2)
B1 = 2980000 (P-1 stage 1)
B1 = 2475400 (P-1 stage 1)
B1 = 100000, B2 = 1650000 (P-1 stage 2)
B1 = 171338 (P-1 stage 1)
B1 = 135669 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
104
105
106
107
104
105
106
107
108
109
1010
TF factor-bounds graph:
265
263
261
258
this exponent TF target: 61
TF double-checked to: 67
ECM T-Level=25.72 ~= 69-bit
250
260
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280
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Last modified: 2024-03-13T02:15:48+00:00