is 2 6016009 - 1
has 1811000 decimal digits
takes 1.066 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LEE8C18000270E7D2double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2689.907766.1765%1500000500000001.06457.2986%10.972268.6451%2.4687%
PrimeNet2620.102162.9032%260006000000.01473.3311%0.116864.1390%1.2357%
GPU722662.454965.1515%400009000000.02232.4182%2.477265.9942%0.8427%
Difference+2+7.4529+1.0250%+1460000+49100000+1.0422+4.8804%+8.4950+2.6509%+2.6509%

Known prime factors (1 factor, 99.4 bits, 0.00165250% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
60160098448803144213199521766769900813099.41570219335976834472170560
26 × 32 × 5 × 17 × 383 × 827 × 454513 × 9962417
2018-06-2545451399624172.785e+100.24990.2605

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-02-04T00:00:00ANONYMOUSv4_computers2500025000---0.006--0.386%
2001-04-21T00:00:00ANONYMOUSv4_computers25000175000---0.009--1.014%
2001-04-29T00:00:00ANONYMOUSv4_computers25000250000---0.010--1.141%
2001-06-09T00:00:00ANONYMOUSv4_computers25000175000---0.009--1.014%
2013-01-17T21:49:00Squeeky_SquirrelP4_26001100002172500---0.057--2.868%
2018-06-25T13:16:40mikrS069150000050000000123099.4151.0642.1322.1297.299%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-21T00:00:00ANONYMOUSv4_computers21261--0.051--
1998-09-13T00:00:00PhillTv4_computers21262--0.102--
2016-02-23T16:39:16Mark RoseManual testing262263--0.163--
2014-04-28T14:06:00c10ck3rManual testing263265--0.947--
2015-10-02T12:47:16snme2pm1Manual testing265266--1.242--
2016-03-11T22:41:12Gordon SpenceManual testing266267--2.484--
2018-05-29T09:13:04ramgeisManual testing267268--4.969--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.886 GHz-days
Estimated T-Level:0.350
DigitsB1CurvesCompleteFacMiss
20110007 / 1000.07093.207%
25500007 / 2800.02597.527%

New Calculation Method

Total ECM effort:1.886 GHz-days
Estimated T-Level:0.350
DigitsB1CompleteFacMiss
20110000.22679.787%
25500000.02097.980%
302500000.00199.874%


ECM Summary

B1B2factorcurvesGHz-days
50000500000071.886


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-11-07T00:00:00ANONYMOUSv4_computersEE8C18000270E7D21.066
2001-06-03T00:00:00ANONYMOUSv4_computersEE8C18000270E7D21.066


PRP results:
dateuseridcompidcofactorsres64PRP
2018-06-25T14:23:01ATHwork102442
844880314421319952176676990081
086592FD46B20B__no
2018-06-25T21:10:25francijezekstac1
844880314421319952176676990081
086592FD46B20B__no
2018-06-26T11:12:52kkmrkkblmbrbkc5.large
844880314421319952176676990081
086592FD46B20B__no


P-1 factor-bounds graph:
B1 = 1500000, B2 = 50000000 (P-1 stage 2)
B1 = 1500000 (P-1 stage 1)
B1 = 110000, B2 = 2172500 (P-1 stage 2)
B1 = 110000 (P-1 stage 1)
B1 = 25000, B2 = 250000 (P-1 stage 2)
B1 = 25000, B2 = 175000 (P-1 stage 2)
B1 = 25000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
TF factor-bounds graph:
268
267
266
265
263
262
261
250
260
270
280
290
2100
Last modified: 2018-06-26T11:12:52+00:00