is 2 246611 - 1
has 74238 decimal digits
takes 0.001 GHz-days to do one PRP test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LAAC1FA6693ABEAD1double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual267120.489073.1343%2595000752550000.05336.3780%120.542379.5123%24.5123%
PrimeNet2400.000055.0000%2600650000.000013.9875%0.000068.9875%13.9875%
GPU722440.000059.0909%45001100000.000110.1389%0.000169.2298%10.1389%
Difference+23+120.4890+14.0434%+2590500+75145000+0.0532-3.7609%+120.5422+10.2825%+10.2825%

Known prime factors (1 factor, 118.5 bits, 0.04805968% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
24661147666503790153887273720852367614348136118.520966431014637503746258699984340
22 × 5 × 44729 × 332287 × 574219 × 1036493 × 5462537		103649354625372013-10-135.972e+110.01040.0172

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-11-25T00:00:00ANONYMOUSv4_computers1000004000000---0.003--2.239%
2001-06-09T00:00:00ANONYMOUSv4_computers10000010000000---0.005--2.706%
2002-06-02T00:00:00ANONYMOUSv4_computers327683276800---0.002--1.549%
2002-08-03T00:00:00ANONYMOUSv4_computers655366553600---0.003--2.228%
2003-03-07T00:00:00ANONYMOUSv4_computers13107213107200---0.007--3.036%
2003-11-08T00:00:00ANONYMOUSv4_computers26214426214400---0.014--3.960%
2011-02-07T22:22:00Jocelyn LaroucheManual testing20000002000000---0.016--2.596%
2011-07-24T13:13:00Jocelyn LaroucheManual testing20405472040547---0.017--2.615%
2012-02-26T15:17:00Jocelyn LaroucheManual testing25506842550684---0.021--2.831%
2013-10-13T01:39:00David Campeaui5-2500k25950007525500036118.5200.0530.0030.1076.378%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-24T00:00:00ANONYMOUSv4_computers252253--0.002--
2000-04-27T00:00:00ANONYMOUSv4_computers?254--0.010--
2001-02-18T00:00:00ANONYMOUSv4_computers?256--0.039--
2002-04-14T00:00:00ANONYMOUSv4_computers?257--0.078--
2009-01-01T19:08:00Sturle Sundeghini.ifi258259--0.156--
2009-01-06T18:55:00Sturle Sundetristan.ifi259260--0.311--
2013-07-18T19:56:00lycornasteroid260261--0.623--


ECM factoring results:
Total ECM effort:8.171 GHz-days
Estimated T-Level:26.680
DigitsB1CurvesCompleteFacMiss
2011000501 / 1005.0100.650%
2550000501 / 2801.78916.655%
30250000215 / 6400.33671.448%

ECM Summary

B1B2factorcurvesGHz-days
5000050000002861.709
250000250000002086.215
2500003850000070.247


Lucas-Lehmer results:
Exponent "246611" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T06:39:57Oliver KruseOllaptop
476665037901538872737208523676143481
17F6F878686CC3__no
2017-09-22T10:05:56Oliver KruseManual testing
476665037901538872737208523676143481
17F6F878686CC3__no
2017-10-12T16:18:48Oliver KruseGTX-017F6F878686CC3__no
2017-11-06T16:00:28kkmrkkblmbrbkc4.xlarge
476665037901538872737208523676143481
17F6F878686CC3__no
2020-04-17T20:12:13Oliver KruseAddPrpType5
476665037901538872737208523676143481
E389734CFFD926__no


P-1 factor-bounds graph:
B1 = 2595000, B2 = 75255000 (stage 2)
B1 = 2595000 (stage 1)
B1 = 2550684 (stage 1)
B1 = 2040547 (stage 1)
B1 = 2000000 (stage 1)
B1 = 262144, B2 = 26214400 (stage 2)
B1 = 131072, B2 = 13107200 (stage 2)
B1 = 100000, B2 = 10000000 (stage 2)
B1 = 65536, B2 = 6553600 (stage 2)
B1 = 100000, B2 = 4000000 (stage 2)
B1 = 262144 (stage 1)
B1 = 32768, B2 = 3276800 (stage 2)
B1 = 131072 (stage 1)
B1 = 100000 (stage 1)
B1 = 65536 (stage 1)
B1 = 32768 (stage 1)
103
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107
103
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108
TF factor-bounds graph:
267
261
260
259
257
256
254
253
250
260
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280
290
2100
2110
2120
Last modified: 2021-03-10T11:45:43+00:00