is 2 3063703 - 1
has 922267 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-L22C90B3B7605492Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26819.455267.6471 %10563702267496001.64798.2150 %21.103170.3049 %
Target2641.161865.6250 %1400011000000.00901.4662 %1.170866.1290 %
Difference+4+18.2934+2.0221 %+1042370+225649600+1.6388+6.7488%+19.9323+4.1758 %

Known prime factors (1 factor, 74.9 bits, 0.00244530% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3063703356577742663256194686732374.9175819391479253312
26 × 32 × 2953 × 3413 × 1002433
2010-09-24341310024332,403.50.00710.0126

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2004-02-07ANONYMOUSv4_computers2048204800--0.0020.572%
2010-09-24markrtiny2374.9170.0290.000%
2021-01-19JossManual testing30637030637036
skipped known factor: 35657774266325619468673
---4.992%
2022-01-23JossManual testing1056370119912100
skipped known factor: 35657774266325619468673
--1.14710.476%
2022-09-07JossManual testing1056370226749600
skipped known factor: 35657774266325619468673
--2.03411.352%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-06-17David Campeauv4_computers212600.025
2009-02-13Sturle Sundescarpia.ifi2602610.050
2022-03-13LordJuliusManual testing261267
2021-06-15JossManual 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)
1999-08-16ANONYMOUSv4_computers22C90B3B7605492E0.261


PRP results:
dateuseridcompidcofactorsres64
2017-10-28Oliver KruseGTX-3
35657774266325619468673
46BDE9A891E68C0A
2017-12-11kkmrkkblmbrbkc4.xlarge
35657774266325619468673
46BDE9A891E68C0A


CERT results:
No CERT results for M3063703


P-1 factor-bounds graph:
B1 = 1056370, B2 = 226749600 (P-1 stage 2)
B1 = 1056370, B2 = 119912100 (P-1 stage 2)
B1 = 1056370 (P-1 stage 1)
B1 = 306370, B2 = 3063703 (P-1 stage 2)
B1 = 306370 (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
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Last modified: 2024-03-13T02:15:48+00:00