is 2 17504063 - 1
has 5269249 decimal digits
takes 9.968 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L6050532B7D549B21double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual273109.280065.7534%10000001213911306.24165.8392%115.521667.7531%1.9997%
PrimeNet2650.416861.5385%8000024000000.17044.5487%0.587263.2880%1.7495%
GPU722696.820563.7681%12000034000000.24663.3524%7.067264.9827%1.2146%
Difference+4+102.4595+1.9853%+880000+117991130+5.9950+2.4868%+108.4545+2.7704%+2.7704%

Known prime factors:
No known factors for M17504063

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-02-17T23:45:08masserManual testing1000000121391130---6.242--5.839%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-02-11T00:00:00Net_Forcev4_computers21258--0.002--
2001-03-17T00:00:00Net_Forcev4_computers21259--0.004--
2001-09-10T00:00:00ANONYMOUSv4_computers21265--0.417--
2016-03-17T12:59:29Mark RoseManual testing265266--0.427--
2014-08-30T01:07:00NesowaManual testing266267--0.854--
2018-02-10T15:53:21ramgeisManual testing267268--1.708--
2018-02-10T15:53:21ramgeisManual testing268269--3.415--
2020-04-11T12:39:36lycornManual testing269270--6.831--
2021-09-09T16:48:52SRBaseManual testing270271--13.66--
2021-09-11T10:46:20-Anonymous-Manual testing271272--27.32--
2022-01-11T17:56:10TheJudgerManual testing272273--54.65--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.866 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.866 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03296.826%
25500000.00399.709%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.866


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2006-08-14T00:00:00ANONYMOUSv4_computers6050532B7D549B219.97


PRP results:
No PRP results for M17504063


P-1 factor-bounds graph:
B1 = 1000000, B2 = 121391130 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
104
105
106
107
104
105
106
107
108
109
1010
TF factor-bounds graph:
273
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271
270
269
268
267
266
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259
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270
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2100
Last modified: 2022-02-17T23:45:08+00:00