is 25980973-1
has 1,800,453 decimal digits
takes 1.060 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LE0AE703F9322D3D5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2689.965766.1765%320,0007,440,0000.18194.3922%10.147770.5687%7.6655%
PrimeNet2620.102762.9032%26,000600,0000.01473.3280%0.117466.2312%3.3280%
GPU722662.469265.1515%40,000800,0000.02092.3465%2.490267.4981%2.3465%
Difference+2+7.4965+1.0250%+280,000+6,640,000+0.1610+2.0457%+7.6575+3.0707%+3.0707%

Known prime factors (1 factor, 134.0 bits, 0.00223994% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
59809732133344595893041379288703710730301845055341133.9701783442757468593637932075358583212
22 × 32 × 181 × 1319 × 68903 × 85093 × 133403 × 174281 × 1522249
174,2811,522,2492020-01-022.818e+100.06370.0911

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-06-12T23:18:00Carsten Kossendeyleela30,000427,500---0.013--1.410%
2010-09-26T04:46:00Squeeky_SquirrelP4_260070,0001,155,000---0.033--2.256%
2020-01-02T21:12:02Aaron HavilandManual testing320,0007,440,0001241133.9700.1822.1200.3644.392%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-05-16T00:00:00ANONYMOUSv4_computers?261--0.026--
1998-06-01T00:00:00ANONYMOUSv4_computers?262--0.051--
2003-11-28T00:00:00Team_Inspectorv4_computers?262--0.051--
2003-12-13T00:00:00Team_Inspectorv4_computers?262--0.051--
2004-05-25T00:00:00Team_Inspectorv4_computers?262--0.051--
2004-06-12T00:00:00Team_Inspectorv4_computers?262--0.051--
2016-02-23T16:39:15Mark RoseManual testing262263--0.164--
2014-10-02T22:15:00NesowaManual testing263264--0.328--
2014-10-03T17:03:00monstManual testing264265--0.625--
2015-09-30T21:19:49snme2pm1Manual testing265266--1.249--
2016-06-18T16:39:48Gordon SpenceManual testing266267--2.499--
2018-04-11T21:25:46ramgeisManual testing267268--4.998--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,00092.425


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-11-14T00:00:00ANONYMOUSv4_computersE0AE703F9322D3D51.060
2000-12-07T00:00:00ANONYMOUSv4_computersE0AE703F9322D3D51.060


PRP results:
dateuseridcompidcofactorsres64PRP
2020-01-03T18:14:20treborLaptop
21333445958930413792887037107303018450553
26A81456986E9773no
2020-01-05T22:56:23Alvin BunkBADCAT
21333445958930413792887037107303018450553
26A81456986E9773no


P-1 factor-bounds graph:
B1 = 320,000, B2 = 7,440,000 (stage 2)
B1 = 320,000 (stage 1)
B1 = 70,000, B2 = 1,155,000 (stage 2)
B1 = 70,000 (stage 1)
B1 = 30,000, B2 = 427,500 (stage 2)
B1 = 30,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2020-01-05T22:56:23+00:00