is 2786833-1
has 236,861 decimal digits
takes 0.016 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L9B22B26B27F8635Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2632.028468.2540%500,00015,000,0000.03746.7151%2.065874.9691%24.9691%
PrimeNet2400.000050.0000%7,000300,0000.000722.2728%0.000772.2728%22.2728%
GPU722440.000054.5455%13,000500,0000.001117.0869%0.001171.6323%17.0869%
Difference+19+2.0284+13.7085%+487,000+14,500,000+0.0362-10.3717%+2.0646+3.3368%+3.3368%

Known prime factors (1 factor, 130.8 bits, 0.01662330% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
786833236599137146570705662911837534864020963340130.7981503490176101985463642932093181552
24 × 6263 × 95393 × 144563 × 404819 × 489179 × 5494091
489,1795,494,0912013-10-312.001e+110.02210.0288

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-01-02T00:00:00ANONYMOUSv4_computers2,000200,000---0.000--0.473%
2002-02-03T00:00:00ANONYMOUSv4_computers4,096409,600---0.001--0.905%
2002-03-31T00:00:00ANONYMOUSv4_computers8,192819,200---0.002--1.501%
2002-05-18T00:00:00ANONYMOUSv4_computers16,3841,638,400---0.003--2.274%
2002-07-27T00:00:00ANONYMOUSv4_computers32,7683,276,800---0.006--3.211%
2002-12-16T00:00:00ANONYMOUSv4_computers65,5376,553,700---0.012--4.293%
2003-07-21T00:00:00ANONYMOUSv4_computers131,07213,107,200---0.024--5.505%
2011-07-10T12:45:00Jocelyn LaroucheManual testing272,006272,006---0.008--2.175%
2011-08-28T21:10:00Jocelyn LaroucheManual testing453,344453,344---0.013--2.690%
2012-01-09T00:59:00Jocelyn LaroucheManual testing906,689906,689---0.026--3.482%
2012-07-21T19:06:00Jocelyn LaroucheManual testing1,573,6661,573,666---0.046--4.189%
2013-10-31T14:07:00David Campeaui5-2500k500,00015,000,00040130.7980.0370.0310.0756.715%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-10-07T00:00:00ANONYMOUSv4_computers?255--0.006--
2001-02-18T00:00:00ANONYMOUSv4_computers?256--0.012--
2001-12-08T00:00:00ANONYMOUSv4_computers?257--0.024--
2003-09-21T00:00:00ANONYMOUSv4_computers?258--0.049--
2008-10-12T09:36:00Sturle Sundepapageno.ifi258259--0.049--
2008-10-12T10:06:00Sturle Sundepapageno.ifi259260--0.098--
2010-06-15T10:50:00For Researcha3_ss260261--0.195--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,0002816.408
250,00025,000,000445.017


Lucas-Lehmer results:
Exponent "786833" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-28T00:27:39Oliver KruseGTX-0D0FF767607F3FD__?
2017-10-13T21:24:15Oliver KruseThreadripperD0FF767607F3FD__no
2017-12-16T20:53:24ATHec2-1xf
2365991371465707056629118375348640209633
D0FF767607F3FD__no
2020-04-21T05:32:43Oliver KruseAddPrpType5
2365991371465707056629118375348640209633
13CAA845364E2D__no


P-1 factor-bounds graph:
B1 = 1,573,666 (stage 1)
B1 = 500,000, B2 = 15,000,000 (stage 2)
B1 = 906,689 (stage 1)
B1 = 131,072, B2 = 13,107,200 (stage 2)
B1 = 500,000 (stage 1)
B1 = 453,344 (stage 1)
B1 = 65,537, B2 = 6,553,700 (stage 2)
B1 = 272,006 (stage 1)
B1 = 32,768, B2 = 3,276,800 (stage 2)
B1 = 131,072 (stage 1)
B1 = 16,384, B2 = 1,638,400 (stage 2)
B1 = 65,537 (stage 1)
B1 = 8,192, B2 = 819,200 (stage 2)
B1 = 32,768 (stage 1)
B1 = 4,096, B2 = 409,600 (stage 2)
B1 = 16,384 (stage 1)
B1 = 2,000, B2 = 200,000 (stage 2)
B1 = 8,192 (stage 1)
B1 = 4,096 (stage 1)
B1 = 2,000 (stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
TF factor-bounds graph:
263
261
260
259
258
257
256
255
250
260
270
280
290
2100
2110
2120
2130
2140
Last modified: 2020-04-21T05:32:43+00:00