is 2 3277091 - 1
has 986503 decimal digits
takes 0.344 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26818.188367.6471 %10777082232846002.00788.2732 %20.196270.3237 %
Target2641.086165.6250 %1700014000000.01411.6870 %1.100266.2049 %
Difference+4+17.1022+2.0221 %+1060708+221884600+1.9938+6.5862%+19.0960+4.1188 %

Known prime factors (2 factors, 127.9 bits, 0.00390412% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3277091827209618226924091756.19912621096244
22 × 3155274061
-431552740610.003026.18048.897
327709139499738534352366323932271.742602664657990156
22 × 32 × 16740684944171
2018-09-25916740684944171272.11138,901259,428

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-12-25JossManual testing109236109236---1.577%
2020-12-28JossManual testing163854163854---1.919%
2020-12-30JossManual testing32770932770916---5.143%
2022-01-08JossManual testing1077708116447100--1.12110.521%
2022-09-07JossManual testing1077708223284600--2.00811.421%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2021-10-04JossManual testing267268


ECM factoring results:
Total ECM effort:0.375 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.375


Lucas-Lehmer results:
No L-L results for M3277091


PRP results:
dateuseridcompidcofactorsres64
2017-11-03Oliver KruseGTX-0
82720961822692409
B5AB8B5C241E98C4
2017-12-14kkmrkkblmbrbkc4.xlarge
82720961822692409
B5AB8B5C241E98C4
2018-09-27rbanovccg_lnx01
82720961822692409
3949973853435236632393
B5AB8B5C241E98C4


CERT results:
No CERT results for M3277091


P-1 factor-bounds graph:
B1 = 1077708, B2 = 223284600 (P-1 stage 2)
B1 = 1077708, B2 = 116447100 (P-1 stage 2)
B1 = 1077708 (P-1 stage 1)
B1 = 327709, B2 = 3277091 (P-1 stage 2)
B1 = 327709 (P-1 stage 1)
B1 = 163854 (P-1 stage 1)
B1 = 109236 (P-1 stage 1)
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TF factor-bounds graph:
268
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