is 2 2434073 - 1
has 732729 decimal digits
takes 0.164 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LB2D33E18EF957FDFdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26949.048268.1159%1986400695240000.55506.5896%49.603270.2170%2.1010%
PrimeNet2590.031662.7119%100001800000.00192.5252%0.033463.6535%0.9416%
GPU722630.655765.0794%100001500000.00171.3059%0.657465.5354%0.4560%
Difference+6+48.3925+3.0366%+1976400+69374000+0.5533+5.2837%+48.9458+4.6816%+4.6816%

Known prime factors:
No known factors for M2434073

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-10-14T00:00:00ANONYMOUSv4_computers2048204800---0.001--0.188%
2003-10-31T00:00:00Team Prime Ribv4_computers15000217500---0.003--0.657%
2010-11-17T11:34:00Jocelyn LaroucheManual testing2000020000---0.002--0.220%
2011-01-09T14:45:00Oscar Östlin7501175011---0.007--0.592%
2011-01-24T13:01:00Oscar Östlin950001923750---0.019--2.095%
2014-05-02T12:20:00mikrMSI198640069524000---0.555--6.590%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-02-08T00:00:00ANONYMOUSv4_computers21258--0.016--
1999-03-15T00:00:00ANONYMOUSv4_computers21259--0.032--
2016-02-23T16:29:14Mark RoseManual testing259260--0.032--
2009-01-10T21:46:00Sturle Sundedanzi.ifi260261--0.063--
2012-06-05T17:43:00Sebastian HornbostelManual testing261262--0.126--
2013-12-04T21:13:00Jerry HallettManual testing262263--0.403--
2015-02-27T20:40:00VictordeHollanderManual testing263264--0.807--
2015-02-27T20:40:00VictordeHollanderManual testing264265--1.535--
2015-10-25T20:34:59ramgeisManual testing265266--3.070--
2017-07-08T12:01:25Gordon SpenceManual testing266267--6.140--
2019-06-24T09:35:58TJAOIManual testing267268--12.28--
2021-07-26T11:06:23TJAOIManual testing268269--24.56--


ECM factoring results:

Old Calculation Method

Total ECM effort:15.265 GHz-days
Estimated T-Level:23.036
DigitsB1CurvesCompleteFacMiss
2011000170 / 1001.70018.113%
2550000170 / 2800.60754.431%

New Calculation Method

Total ECM effort:15.265 GHz-days
Estimated T-Level:23.036
DigitsB1CompleteFacMiss
20110006.5610.141%
25500000.60754.484%
302500000.03896.240%
3510000000.00299.821%


ECM Summary

B1B2factorcurvesGHz-days
50000500000015613.91
50000520000070.635
50000675000070.716


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-02-08T00:00:00ANONYMOUSv4_computersB2D33E18EF957FDF0.164
1999-04-02T00:00:00ANONYMOUSv4_computersB2D33E18EF957FDF0.164
2018-05-22T19:03:16kkmrkkblmbrbkoldB2D33E18EF957FDF0.164


PRP results:
No PRP results for M2434073


P-1 factor-bounds graph:
B1 = 1986400, B2 = 69524000 (P-1 stage 2)
B1 = 1986400 (P-1 stage 1)
B1 = 95000, B2 = 1923750 (P-1 stage 2)
B1 = 95000 (P-1 stage 1)
B1 = 75011 (P-1 stage 1)
B1 = 15000, B2 = 217500 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
B1 = 15000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-05-30T12:24:17+00:00