is 2 1179649 - 1
has 355110 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-LF7214B2F199C1EA5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26725.188868.6567 %300000100000000.03684.1521 %25.225669.9581 %
Target2600.130265.0000 %50001400000.00050.7997 %0.130765.2799 %
Difference+7+25.0586+3.6567 %+295000+9860000+0.0363+3.3524%+25.0949+4.6782 %

Known prime factors (2 factors, 161.0 bits, 0.01364731% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1179649470240395064136035796072375.31619931369206608747
32 × 17 × 467 × 138077 × 2020261
2013-10-0713807720202616,486.60.01070.0125
1179649617458997601445811951466792685.67526171301700821422811
3 × 467 × 18680443755047411
2020-11-20467186804437550474116,642,43045,256,48884,526,517

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-05-05Jossv4_computers10001000--4.45000e-50.039%
2002-08-24Jossv4_computers20002000--8.89000e-50.103%
2002-08-24Jossv4_computers30003000--0.0000.167%
2002-08-24Jossv4_computers40004000--0.0000.227%
2002-08-31Jossv4_computers70007000--0.0000.386%
2002-08-31Jossv4_computers80008000--0.0000.433%
2002-08-31Jossv4_computers60006000--0.0000.336%
2002-08-31Jossv4_computers50005000--0.0000.283%
2002-09-14Jossv4_computers1000010000--0.0000.521%
2002-09-14Jossv4_computers90009000--0.0000.478%
2003-09-21Team Prime Ribv4_computers1000010000006--0.0032.876%
2003-09-21Xyzzyv4_computers1000010000006--0.0032.876%
2016-03-17alpertronManual testing3000001000000012
skipped known factor: 47024039506413603579607
---8.262%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-11-03ANONYMOUSv4_computers212570.016
2003-05-11ANONYMOUSv4_computers212580.033
2022-03-07LordJuliusManual testing258260
2009-02-15Sturle Sundegoose.ifi2602610.130
2012-09-05AxelssonManual testing2612620.260
2012-10-21dbaughManual testing2622630.832


ECM factoring results:
Total ECM effort:18.933 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
10.038
50000500000028110.53
25000025000000326.082
25000025000000122.281


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2005-01-20ANONYMOUSv4_computersF7214B2F199C1EA50.036


PRP results:
dateuseridcompidcofactorsres64
2017-09-29Oliver KruseGTX-2
47024039506413603579607
BCFED32A5B82030F
2017-10-17Oliver KruseThreadripper-PC
47024039506413603579607
BCFED32A5B82030F
2018-01-03ATHec2-8x
47024039506413603579607
BCFED32A5B82030F
2020-11-22fre_gamesgpu
47024039506413603579607
61745899760144581195146679
B6F237C151687A10
2020-11-22ATHec2-PRPCFDC
47024039506413603579607
61745899760144581195146679
B6F237C151687A10


CERT results:
No CERT results for M1179649


P-1 factor-bounds graph:
B1 = 300000, B2 = 10000000 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
B1 = 10000, B2 = 1000000 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 9000 (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
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
1016
1017
TF factor-bounds graph:
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: 2024-02-29T14:28:04+00:00