is 2 1185319 - 1
has 356817 decimal digits
takes 0.036 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LA40FFBCE96CC550Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26725.068368.6567 %2500000625000000.25657.2554 %25.324870.9308 %
Target2600.129665.0000 %50001400000.00050.8006 %0.130165.2802 %
Difference+7+24.9387+3.6567 %+2495000+62360000+0.2560+6.4548%+25.1947+5.6506 %

Known prime factors (1 factor, 77.3 bits, 0.00652257% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11853191877699291745798657307192477.31379206495962091161
19 × 67 × 283 × 219859867379
2016-06-2828321985986737925,823532.65994.84

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-05-05Jossv4_computers10001000--4.45000e-50.039%
2002-08-31Jossv4_computers30003000--0.0000.167%
2002-08-31Jossv4_computers40004000--0.0000.227%
2002-08-31Jossv4_computers20002000--8.89000e-50.103%
2002-09-14Jossv4_computers60006000--0.0000.337%
2002-09-14Jossv4_computers70007000--0.0000.387%
2002-09-14Jossv4_computers80008000--0.0000.434%
2002-09-14Jossv4_computers50005000--0.0000.284%
2002-09-22Jossv4_computers1000010000--0.0000.522%
2003-09-21Team Prime Ribv4_computers1000010000006--0.0032.879%
2003-09-21Xyzzyv4_computers1000010000006--0.0032.879%
2013-09-30David Campeaui5-2500k12100003509000012--0.13611.191%
2016-08-27Bruno VictalManual testing25000006250000012---12.608%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-11-03ANONYMOUSv4_computers212570.016
2003-05-11ANONYMOUSv4_computers212580.032
2016-02-23Mark RoseManual testing2582600.097
2009-04-15Sturle Sundeagrell.ifi2602610.130
2012-09-07AxelssonManual testing2612620.259
2012-11-24dbaughManual testing2622630.828
2015-01-03Matthias WurtingerManual testing2632641.656
2015-01-05lycornManual testing2642653.152
2015-10-01ramgeisManual testing2652666.304


ECM factoring results:
Total ECM effort:18.886 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
50000500000027810.40
50000500000030.114
25000025000000448.369


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-11-11MadPooManual testingA40FFBCE96CC550E0.038


PRP results:
dateuseridcompidcofactorsres64
2017-09-29Oliver KruseGTX-0
187769929174579865730719
6D005C2D80736C32
2017-10-17Oliver KruseThreadripper-PC
187769929174579865730719
6D005C2D80736C32
2018-01-02ATHec2-8x
187769929174579865730719
6D005C2D80736C32


CERT results:
No CERT results for M1185319


P-1 factor-bounds graph:
B1 = 2500000, B2 = 62500000 (P-1 stage 2)
B1 = 1210000, B2 = 35090000 (P-1 stage 2)
B1 = 2500000 (P-1 stage 1)
B1 = 1210000 (P-1 stage 1)
B1 = 10000, B2 = 1000000 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 8000 (P-1 stage 1)
B1 = 7000 (P-1 stage 1)
B1 = 6000 (P-1 stage 1)
B1 = 5000 (P-1 stage 1)
B1 = 4000 (P-1 stage 1)
B1 = 3000 (P-1 stage 1)
B1 = 2000 (P-1 stage 1)
B1 = 1000 (P-1 stage 1)
101
102
103
104
105
106
107
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
266
265
264
263
262
261
260
258
257
this exponent TF target: 60
TF double-checked to: 67
ECM T-Level=25.66 ~= 69-bit
250
260
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Last modified: 2024-03-03T02:29:32+00:00