is 2 2429047 - 1
has 731217 decimal digits
takes 0.164 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L5362C627558A9D1Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual271196.817269.0141 %2000000600000000.50555.4074 %197.322770.6896 %
Target2630.657165.0794 %100007500000.00491.3053 %0.662065.5352 %
Difference+8+196.1602+3.9347 %+1990000+59250000+0.5005+4.1021%+196.6607+5.1544 %

Known prime factors (1 factor, 75.5 bits, 0.00310763% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2429047529020878859801186118872375.48610889473914251169
3 × 6353 × 571355995291
2016-06-0963535713559952915,201.93,049.35,695.2

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-10-08ANONYMOUSv4_computers2048204800--0.0010.657%
2010-10-12Oscar Östlin400006400006--0.0072.807%
2011-01-18JossManual testing5000050000--0.0051.123%
2011-01-28James Heinrichi7-92016500037950006--0.0365.246%
2018-09-28alpertronManual testing20000006000000012---10.536%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1997-11-17ANONYMOUSv4_computers212580.016
1999-03-15ANONYMOUSv4_computers212590.016
2016-02-23Mark RoseManual testing2592600.032
2009-01-11Sturle Sundeklughardt.ifi2602610.063
2012-06-05Sebastian HornbostelManual testing2612620.126
2013-12-04Jerry HallettManual testing2622630.404
2015-02-27VictordeHollanderManual testing2632652.346
2015-10-23ramgeisManual testing2652663.076
2016-05-31YxinityManual testing26627043.07
2016-05-31ramgeisManual testing269271147.7


ECM factoring results:
Total ECM effort:6.083 GHz-days
Estimated T-Level:21.234
DigitsB1CompleteFacMiss
20110002.6547.038%
25500000.24778.128%
302500000.01698.453%


ECM Summary

B1B2factorcurvesGHz-days
500005000000181.473
50000500000010.089
500005166934504.521


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1997-11-17ANONYMOUSv4_computers5362C627558A9D1C0.164
1999-10-21ANONYMOUSv4_computers5362C627558A9D1C0.164


PRP results:
dateuseridcompidcofactorsres64
2017-10-13Oliver KruseGTX-3
52902087885980118611887
9538B02F6EDB599B
2017-11-27kkmrkkblmbrbkc4.xlarge
52902087885980118611887
9538B02F6EDB599B


CERT results:
No CERT results for M2429047


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 165000, B2 = 3795000 (P-1 stage 2)
B1 = 165000 (P-1 stage 1)
B1 = 40000, B2 = 640000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
B1 = 40000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
271
270
266
265
263
262
261
260
259
258
this exponent TF target: 63
TF double-checked to: 67
ECM T-Level=21.23 ~= 54-bit
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Last modified: 2024-03-13T02:15:48+00:00