is 2 2630323 - 1
has 791807 decimal digits
takes 0.203 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LCC67C3D50EB2AC35double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26711.296767.1642 %2000000600000000.57797.6871 %11.874669.6883 %
Target2630.606865.0794 %1300010000000.00751.5724 %0.614365.6285 %
Difference+4+10.6899+2.0848 %+1987000+59000000+0.5704+6.1146%+11.2603+4.0598 %

Known prime factors (1 factor, 65.4 bits, 0.00248675% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2630323490040721613794567832065.4109315219492317
47 × 67 × 1549 × 1909717
2011-02-28154919097173.89100.01180.0218

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-10-31ANONYMOUSv4_computers2048204800--0.0010.671%
2003-11-08Team Prime Ribv4_computers15000217500--0.0031.681%
2010-12-21JossManual testing2000020000--0.0020.629%
2010-12-26JossManual testing3000030000--0.0040.831%
2011-01-20JossManual testing5000050000--0.0061.140%
2011-02-28James Heinrichi7-9202065.4100.0810.000%
2019-07-04alpertronManual testing20000006000000012
skipped known factor: 49004072161379456783
---10.614%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-08-07ANONYMOUSv4_computers212590.015
2022-03-11LordJuliusManual testing21260
2009-01-30Sturle Sundecelair.ifi2602610.058


ECM factoring results:
Total ECM effort:0.485 GHz-days
Estimated T-Level:1.154
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000060.485


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-30ANONYMOUSv4_computersCC67C3D50EB2AC350.203


PRP results:
dateuseridcompidcofactorsres64
2017-10-17Oliver KruseGTX-1
49004072161379456783
2ECDFCA5089A7D12
2017-12-02kkmrkkblmbrbkc4.xlarge
49004072161379456783
2ECDFCA5089A7D12


CERT results:
No CERT results for M2630323


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
B1 = 30000 (P-1 stage 1)
B1 = 15000, B2 = 217500 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
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
TF factor-bounds graph:
261
260
259
this exponent TF target: 63
TF double-checked to: 67
ECM T-Level=1.15 ~= -13-bit
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00