is 2 1799573 - 1
has 541726 decimal digits
takes 0.098 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L55555D6E64997CFBdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26833.121769.1176%17995731799573000.90517.9635%34.026871.5770%2.4593%
PrimeNet2570.010763.1579%80001500000.00122.8700%0.011964.2153%1.0574%
GPU722610.170765.5738%90001300000.00121.5543%0.171966.1089%0.5351%
Difference+7+32.9510+3.5439%+1790573+179827300+0.9039+6.4092%+33.8549+5.4681%+5.4681%

Known prime factors:
No known factors for M1799573

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2011-02-11T06:19:00Carsten Kossendeyleela1000001650000---0.015--2.196%
2014-05-09T20:32:00Jocelyn LaroucheManual testing135666135666---0.011--0.924%
2014-09-19T20:39:00Jocelyn LaroucheManual testing171332171332---0.013--1.051%
2015-06-18T12:24:00mikrMSI247540086660000---0.556--7.340%
2018-09-17T11:34:54Jocelyn Larouchelow 4M179957317995730012---0.905--7.964%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-01-25T00:00:00ANONYMOUSv4_computers21258--0.021--
2016-02-23T16:28:52Mark RoseManual testing258260--0.064--
2010-04-20T13:13:00Architects Cubeda3_bu2260261--0.085--
2016-02-23T16:28:52Mark RoseManual testing261262--0.171--
2010-12-13T03:33:00GrunwalderGIMPManual testing21263--0.887--
2016-02-23T16:28:52Mark RoseManual testing262263--0.545--
2015-05-15T10:56:00snme2pm1Manual testing263264--1.091--
2015-05-15T10:56:00snme2pm1Manual testing264265--2.076--
2015-09-13T19:11:00ramgeisManual testing265266--4.153--
2017-04-24T15:18:34TJAOIManual testing266267--8.305--
2019-06-10T09:46:21TJAOIManual testing267268--16.61--


ECM factoring results:

Old Calculation Method

Total ECM effort:17.957 GHz-days
Estimated T-Level:24.643
DigitsB1CurvesCompleteFacMiss
2011000260 / 1002.6007.331%
2550000260 / 2800.92939.446%

New Calculation Method

Total ECM effort:17.957 GHz-days
Estimated T-Level:24.643
DigitsB1CompleteFacMiss
201100010.0090.004%
25500000.92739.578%
302500000.05994.316%
3510000000.00399.727%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025917.86
74000740000010.102


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-12-21T00:00:00ANONYMOUSv4_computers55555D6E64997CFB0.098
2015-07-04T19:28:00MadPooManual testing55555D6E64997CFB0.098


PRP results:
No PRP results for M1799573


P-1 factor-bounds graph:
B1 = 1799573, B2 = 179957300 (P-1 stage 2)
B1 = 2475400, B2 = 86660000 (P-1 stage 2)
B1 = 2475400 (P-1 stage 1)
B1 = 1799573 (P-1 stage 1)
B1 = 100000, B2 = 1650000 (P-1 stage 2)
B1 = 171332 (P-1 stage 1)
B1 = 135666 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-12-18T11:57:56+00:00