is 26623417-1
has 1,993,848 decimal digits
takes 1.241 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LB4C4ED183223DB9Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2688.999166.1765%2,500,00050,000,0001.38287.6635%10.381973.8400%10.3479%
PrimeNet2630.241063.4921%28,000700,0000.01763.1375%0.258566.6296%3.1375%
GPU722674.486265.6716%40,000800,0000.02212.0967%4.508367.7684%2.0967%
Difference+1+4.5129+0.5048%+2,460,000+49,200,000+1.3606+5.5668%+5.8736+6.0716%+6.0716%

Known prime factors (1 factor, 133.9 bits, 0.00202228% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
66234172094894099651133172766249565696268000567941133.9441581430022940676370494451403026767
19 × 241 × 1051 × 2447 × 273473 × 283837 × 594959 × 2907851
594,9592,907,8512020-03-072.833e+100.19590.3291

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-04-08T00:00:00Steve Roffersv4_computers30,000255,000---0.011--1.229%
2012-02-27T02:26:00kurlysmile80,0001,340,000---0.040--2.443%
2019-02-23T09:25:47takahashivaio250,0004,400,0006---0.129--3.863%
2020-03-07T01:26:58takahashiasus2,500,00050,000,000641133.9441.3832.4832.7667.663%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-29T00:00:00jburkelv4_computers?262--0.046--
2003-11-28T00:00:00ANONYMOUSv4_computers?263--0.148--
2014-06-29T01:14:00NesowaManual testing263264--0.296--
2014-07-13T23:24:00lycornManual testing264265--0.564--
2015-11-05T22:31:44snme2pm1Manual testing265266--1.128--
2016-04-15T22:35:17Gordon SpenceManual testing266267--2.256--
2018-02-27T00:21:43-Anonymous-Manual testing267268--4.513--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,00061.710


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-01T00:00:00ANONYMOUSv4_computersB4C4ED183223DB9E1.241
2001-06-23T00:00:00Steve Roffersv4_computersB4C4ED183223DB9E1.241
2015-04-30T20:42:00MadPooManual testingB4C4ED183223DB9E1.241


PRP results:
dateuseridcompidcofactorsres64PRP
2020-03-10T05:38:09Alvin BunkBADCAT
20948940996511331727662495656962680005679
67FEB0F9FD17EB07no
2020-03-10T07:37:59ATHec2-PRPCFDC
20948940996511331727662495656962680005679
67FEB0F9FD17EB07no


P-1 factor-bounds graph:
B1 = 2,500,000, B2 = 50,000,000 (stage 2)
B1 = 2,500,000 (stage 1)
B1 = 250,000, B2 = 4,400,000 (stage 2)
B1 = 250,000 (stage 1)
B1 = 80,000, B2 = 1,340,000 (stage 2)
B1 = 80,000 (stage 1)
B1 = 30,000, B2 = 255,000 (stage 2)
B1 = 30,000 (stage 1)
103
104
105
106
107
103
104
105
106
107
108
TF factor-bounds graph:
268
267
266
265
264
263
262
250
260
270
280
290
2100
2110
2120
2130
2140
Last modified: 2020-03-10T07:37:59+00:00