is 22155207-1
has 648,782 decimal digits
takes 0.142 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LBDC95C5E47614A52double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2660.00000.0000%360,0006,480,0000.0661178.9328%0.0661178.9328%116.8638%
PrimeNet2580.017862.0690%10,000170,0000.00182.8091%0.019664.8780%2.8091%
GPU722620.285164.5161%10,000160,0000.00171.5186%0.286866.0347%1.5186%
Difference+4+-0.2851+-64.5161%+350,000+6,320,000+0.0644+177.4142%-0.2207+112.8981%+112.8981%

Known prime factors (1 factor, 118.3 bits, 0.00548750% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
215520739985740066682628117126705654352160936118.26792765428255111059209455763772
22 × 3 × 47 × 127 × 241 × 1129 × 1783 × 6277 × 191699 × 2218549
191,6992,218,5492016-04-098.247e+100.02880.0372

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-03-07T00:00:00ANONYMOUSv4_computers2,048204,800---0.001--0.775%
2010-11-03T21:25:00Jocelyn LaroucheManual testing20,00020,000---0.002--0.711%
2010-12-30T22:20:00Jocelyn LaroucheManual testing30,00030,000---0.003--0.934%
2011-01-15T02:57:00Jocelyn LaroucheManual testing50,00050,000---0.005--1.271%
2011-01-24T10:55:00markrtiny120,0002,340,000---0.023--4.989%
2014-10-01T22:53:00Jocelyn LaroucheManual testing149,781149,781---0.014--2.218%
2016-03-22T02:16:49Jocelyn LaroucheManual testing269,605269,605---0.026--2.849%
2016-04-09T18:54:43Jocelyn LaroucheManual testing360,0006,480,0001236118.2670.0660.2830.1326.900%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-01-29T00:00:00Lars Lindleyv4_computers?258--0.018--
2016-02-23T16:29:07Mark RoseManual testing258260--0.053--
2009-01-04T20:30:00Sturle Sundegigi.ifi260261--0.071--
2009-01-07T14:10:00Sturle Sunderodolfo.ifi261262--0.143--
2013-09-08T17:50:00ramgeisManual testing262263--0.455--
2015-03-22T08:28:00VictordeHollanderManual testing263264--0.911--
2015-03-22T08:28:00VictordeHollanderManual testing264265--1.734--
2015-12-30T18:01:34ramgeisManual testing265266--3.467--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,000211.793


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-02-14T00:00:00Lars Lindleyv4_computersBDC95C5E47614A520.142


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-08T22:52:02Oliver KruseGTX-2
399857400666826281171267056543521609
E8467A94D8FA09__no
2017-11-18T18:48:53kkmrkkblmbrbkc4.xlarge
399857400666826281171267056543521609
E8467A94D8FA09__no


P-1 factor-bounds graph:
B1 = 360,000, B2 = 6,480,000 (stage 2)
B1 = 360,000 (stage 1)
B1 = 269,605 (stage 1)
B1 = 120,000, B2 = 2,340,000 (stage 2)
B1 = 149,781 (stage 1)
B1 = 120,000 (stage 1)
B1 = 50,000 (stage 1)
B1 = 30,000 (stage 1)
B1 = 20,000 (stage 1)
B1 = 2,048, B2 = 204,800 (stage 2)
B1 = 2,048 (stage 1)
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TF factor-bounds graph:
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Last modified: 2017-11-18T18:48:53+00:00