is 2 1062367 - 1
has 319805 decimal digits
takes 0.031 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L41BAC4DC7B27EB06double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual271450.012470.4225 %500000150000000.05543.1821 %450.067871.3637 %
Target2600.144665.0000 %4500950000.00040.6351 %0.145065.2223 %
Difference+11+449.8678+5.4225 %+495500+14905000+0.0550+2.5471%+449.9228+6.1415 %

Known prime factors (1 factor, 82.2 bits, 0.00774132% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
106236757156266159412888679139512582.2412690043372931053425
52 × 11 × 13 × 37 × 47 × 432696770981
2016-04-2947432696770981921,9661,013.11,892.3

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-01-28Jossv4_computers100100--4.30000e-60.000%
2002-03-10Jossv4_computers10001000--4.30000e-50.037%
2002-03-10Jossv4_computers1000100000--0.0000.470%
2002-03-16Jossv4_computers10000100000--0.0011.553%
2011-12-31bcp19Toshiba-740Q2000001000000012--0.0327.825%
2014-08-07JossManual testing260416260416--0.0113.201%
2014-10-22JossManual testing320832320832--0.0143.468%
2015-10-16Bruno Victal5820K.ECM5000001500000012--0.0579.136%
2016-03-25JossManual testing900297900297---4.948%
2016-04-02JossManual testing10803561080356---5.236%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-11-17ANONYMOUSv4_computers212570.018
2003-04-03ANONYMOUSv4_computers212580.036
2016-02-23Mark RoseManual testing2582600.108
2009-02-15Sturle Sundegibsy.ifi2602610.145
2010-11-13Michael CManual testing2612620.289
2012-10-07dbaughManual testing2622630.924
2013-04-13Never Odd Or EvenManual testing2632641.848
2013-04-13Never Odd Or EvenManual testing2642653.517
2013-04-13Never Odd Or EvenManual testing2652667.034
2013-04-13Never Odd Or EvenManual testing26626714.07
2013-04-13Never Odd Or EvenManual testing26726828.14
2013-09-29Never Odd Or EvenManual testing26826956.27
2013-09-29Never Odd Or EvenManual testing269270112.5
2014-04-01Never Odd Or EvenManual testing270271225.1


ECM factoring results:
Total ECM effort:17.452 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002809.71
50000500000010.036
25000025000000447.708


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-02-24ANONYMOUSv4_computers41BAC4DC7B27EB060.031


PRP results:
dateuseridcompidcofactorsres64
2017-09-28Oliver KruseGTX-2
5715626615941288867913951
6A208E93A27F5417
2017-10-16Oliver KruseThreadripper-PC
5715626615941288867913951
6A208E93A27F5417
2017-12-31ATHec2-1xh
5715626615941288867913951
6A208E93A27F5417


CERT results:
No CERT results for M1062367


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 1080356 (P-1 stage 1)
B1 = 900297 (P-1 stage 1)
B1 = 200000, B2 = 10000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 320832 (P-1 stage 1)
B1 = 260416 (P-1 stage 1)
B1 = 200000 (P-1 stage 1)
B1 = 10000, B2 = 100000 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 1000, B2 = 100000 (P-1 stage 2)
B1 = 1000 (P-1 stage 1)
B1 = 100 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 60
TF double-checked to: 67
ECM T-Level=25.66 ~= 69-bit
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Last modified: 2024-02-09T03:30:02+00:00