is 2 3064993 - 1
has 922655 decimal digits
takes 0.261 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L3F8B1DAD33817317double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26819.447067.6471 %30649936374214004.643510.3733 %24.090571.0031 %
Target2641.161365.6250 %1400011000000.00901.4663 %1.170366.1291 %
Difference+4+18.2857+2.0221 %+3050993+636321400+4.6345+8.9069%+22.9202+4.8741 %

Known prime factors (1 factor, 76.4 bits, 0.00249303% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
30649931004829470437454035414972476.41116392035323367036
22 × 19 × 29 × 773 × 7607 × 1264819
2010-09-24760712648196,934.20.00940.0159

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-12-23markrv4_computers15000217500--0.0031.493%
2004-02-14ANONYMOUSv4_computers2048204800--0.0020.572%
2010-09-24markrtiny2476.4110.0290.000%
2021-01-19JossManual testing30649930649936
skipped known factor: 100482947043745403541497
---4.993%
2021-06-16JossManual testing30649933064993
skipped known factor: 100482947043745403541497
--0.3785.467%
2021-12-18JossManual testing3064993108985800
skipped known factor: 100482947043745403541497
--1.34611.122%
2021-12-22JossManual testing3064993637421400
skipped known factor: 100482947043745403541497
--5.73013.815%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-06-17David Campeauv4_computers212600.025
2009-02-13Sturle Sundescarpia.ifi2602610.050
2022-03-13LordJuliusManual testing261267
2021-06-16JossManual testing267268


ECM factoring results:
Total ECM effort:0.243 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.243


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-06-15ANONYMOUSv4_computers8C683E139E856B0D0.261
1999-09-07Gordon Spencev4_computers3F8B1DAD338173170.261
1999-10-15Gordon Spencev4_computers3F8B1DAD338173170.261
1999-11-04ANONYMOUSv4_computers3F8B1DAD338173170.261


PRP results:
dateuseridcompidcofactorsres64
2017-10-28Oliver KruseGTX-1
100482947043745403541497
0D9BC9BE884A7841
2017-12-11kkmrkkblmbrbkc4.xlarge
100482947043745403541497
0D9BC9BE884A7841


CERT results:
No CERT results for M3064993


P-1 factor-bounds graph:
B1 = 3064993, B2 = 637421400 (P-1 stage 2)
B1 = 3064993, B2 = 108985800 (P-1 stage 2)
B1 = 3064993 (P-1 stage 1)
B1 = 306499, B2 = 3064993 (P-1 stage 2)
B1 = 306499 (P-1 stage 1)
B1 = 15000, B2 = 217500 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
261
260
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
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280
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Last modified: 2024-03-13T02:15:48+00:00