is 2 602453 - 1
has 181357 decimal digits
takes 0.009 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L3D41AB9FFCC46918double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual269198.167871.0145 %60245301807359000.34247.3047 %198.510373.1318 %
Target2440.000054.5455 %1000018000000.002415.4357 %0.002461.5617 %
Difference+25+198.1678+16.4690 %+6014530+178935900+0.3401-8.1310 %+198.5079+11.5701 %

Known prime factors (1 factor, 88.2 bits, 0.01464337% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6024533603270457615184227278517032788.219299049922368648195567
3 × 17 × 863 × 6794581654707659
2019-02-128636794581654707659108,713,1088,155,95215,233,046

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-12-07Alex Kruppav4_computers1000004000000--0.00724.250%
2002-05-11ANONYMOUSv4_computers163841638400--0.00219.803%
2002-06-29ANONYMOUSv4_computers32768327680012--0.00522.502%
2002-09-29ANONYMOUSv4_computers65536655360012--0.00925.153%
2003-05-04ANONYMOUSv4_computers1310721310720030--0.01827.750%
2011-07-01JossManual testing384532384532--0.00816.916%
2011-08-28JossManual testing640887640887--0.01418.491%
2012-03-08JossManual testing801109801109--0.01819.178%
2012-07-21JossManual testing12049061204906--0.02720.431%
2013-10-13David Campeaui5-2500k12550004016000012--0.07432.421%
2015-10-22Bruno Victal5820K.ECM16000006600000012--0.11033.998%
2015-11-06Sid & AndyWoody602453018073590012--0.34237.283%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-04-08ANONYMOUSv4_computers212560.016
2001-10-13ANONYMOUSv4_computers212570.032
2003-10-23ANONYMOUSv4_computers212580.064
2008-10-14Sturle Sundebruch.ifi2582600.191
2010-12-21Sid & AndyToy_Soldier2602610.255
2015-07-17NRManual testing2612620.510
2015-09-23Gordon SpenceManual testing2622644.888
2017-10-15BloodERazorManual testing2642656.202
2017-11-27Smok_bmvManual testing26526886.83
2018-01-31Smok_bmvManual testing26826999.23


ECM factoring results:
Total ECM effort:17.910 GHz-days
Estimated T-Level:26.495
DigitsB1CompleteFacMiss
201100024.5120.000%
25500003.1274.383%
302500000.29974.154%
3510000000.02397.737%
4030000000.00199.853%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002834.572
25000025000000433.644
25000025000000312.627
25000040000000697.068


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-08-10ANONYMOUSv4_computers3D41AB9FFCC469180.009
2015-04-11MadPooManual testing3D41AB9FFCC469180.009


PRP results:
dateuseridcompidcofactorsres64
2019-02-14marcomichsisg6
360327045761518422727851703
29A3A939AFC734AD
2019-02-15kkmrkkblmbrbkc5.large
360327045761518422727851703
29A3A939AFC734AD


CERT results:
No CERT results for M602453


P-1 factor-bounds graph:
B1 = 6024530, B2 = 180735900 (P-1 stage 2)
B1 = 6024530 (P-1 stage 1)
B1 = 1600000, B2 = 66000000 (P-1 stage 2)
B1 = 1255000, B2 = 40160000 (P-1 stage 2)
B1 = 1600000 (P-1 stage 1)
B1 = 1255000 (P-1 stage 1)
B1 = 1204906 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 801109 (P-1 stage 1)
B1 = 640887 (P-1 stage 1)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 384532 (P-1 stage 1)
B1 = 100000, B2 = 4000000 (P-1 stage 2)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 131072 (P-1 stage 1)
B1 = 16384, B2 = 1638400 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
B1 = 65536 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
B1 = 16384 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=26.5 ~= 71-bit
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Last modified: 2024-03-13T02:15:48+00:00