is 2 944929 - 1
has 284452 decimal digits
takes 0.023 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L3E7C81AF8F219028double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26731.445770.1493 %985000315200000.09315.7906 %31.538871.8778 %
Target2440.000054.5455 %1500032500000.006718.2853 %0.006762.8569 %
Difference+23+31.4457+15.6038 %+970000+28270000+0.0864-12.4947 %+31.5321+9.0209 %

Known prime factors (1 factor, 69.6 bits, 0.00736423% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9449298865496202499572965512169.587469109118383475
3 × 52 × 37 × 3823 × 44218763
2014-01-19382344218763126.340.08480.1582

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-01-08ANONYMOUSv4_computers2000200000--0.00012.233%
2002-02-24ANONYMOUSv4_computers4096409600--0.00115.159%
2002-05-05ANONYMOUSv4_computers8192819200--0.00217.959%
2002-05-11Jossv4_computers50005000--0.0004.978%
2002-05-11Jossv4_computers60006000--0.0005.422%
2002-05-25ANONYMOUSv4_computers163841638400--0.00420.722%
2002-07-27ANONYMOUSv4_computers32768327680012--0.00723.439%
2003-01-09ANONYMOUSv4_computers65536655360012--0.01526.105%
2003-09-14ANONYMOUSv4_computers1310721310720012--0.02928.711%
2011-06-08JossManual testing200000200000--0.00715.617%
2011-07-14JossManual testing214525214525--0.00815.835%
2011-10-13JossManual testing715084715084--0.02519.585%
2012-06-26JossManual testing944969944969--0.03320.449%
2013-10-22David Campeaui5-2500k9850003152000012--0.09332.542%
2016-03-17alpertronManual testing20000050000006---26.290%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-06-29ANONYMOUSv4_computers212550.005
2000-07-03ANONYMOUSv4_computers212550.005
2000-11-25ANONYMOUSv4_computers212560.010
2001-10-20ANONYMOUSv4_computers212570.020
2003-08-25ANONYMOUSv4_computers212580.041
2022-03-07LordJuliusManual testing258260
2010-05-15Architects Cubedi4l_12602610.163


ECM factoring results:
Total ECM effort:14.037 GHz-days
Estimated T-Level:25.647
DigitsB1CompleteFacMiss
201100014.4620.000%
25500001.58820.440%
302500000.12987.855%
3510000000.00999.139%


ECM Summary

B1B2factorcurvesGHz-days
10.254
5000050000002727.569
25000025000000446.214


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-12-08ANONYMOUSv4_computers3E7C81AF8F2190280.023


PRP results:
dateuseridcompidcofactorsres64
2017-09-28Oliver KruseGTX-1
886549620249957296551
8D00B1CD76963949
2017-10-15Oliver KruseThreadripper-PC
886549620249957296551
8D00B1CD76963949
2017-12-23ATHec2-1xh
886549620249957296551
8D00B1CD76963949
2020-04-24Oliver KruseAddPrpType5
886549620249957296551
3651C17D4BDFE723


CERT results:
No CERT results for M944929


P-1 factor-bounds graph:
B1 = 985000, B2 = 31520000 (P-1 stage 2)
B1 = 985000 (P-1 stage 1)
B1 = 944969 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 715084 (P-1 stage 1)
B1 = 200000, B2 = 5000000 (P-1 stage 2)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 214525 (P-1 stage 1)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
B1 = 131072 (P-1 stage 1)
B1 = 16384, B2 = 1638400 (P-1 stage 2)
B1 = 65536 (P-1 stage 1)
B1 = 8192, B2 = 819200 (P-1 stage 2)
B1 = 32768 (P-1 stage 1)
B1 = 4096, B2 = 409600 (P-1 stage 2)
B1 = 16384 (P-1 stage 1)
B1 = 2000, B2 = 200000 (P-1 stage 2)
B1 = 8192 (P-1 stage 1)
B1 = 6000 (P-1 stage 1)
B1 = 5000 (P-1 stage 1)
B1 = 4096 (P-1 stage 1)
B1 = 2000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
107
108
TF factor-bounds graph:
261
260
258
257
256
255
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=25.65 ~= 69-bit
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260
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Last modified: 2024-03-03T02:29:32+00:00