is 2 1092461 - 1
has 328864 decimal digits
takes 0.032 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
Actual26727.199168.6567 %300000100000000.03564.1111 %27.234769.9453 %
Target2600.140665.0000 %45001100000.00040.6826 %0.141065.2389 %
Difference+7+27.0585+3.6567 %+295500+9890000+0.0352+3.4285%+27.0936+4.7064 %

Known prime factors (3 factors, 150.8 bits, 0.01380384% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10924616554767722.6443
3
-135.118e-134.766e-88.746e-8
10924613935029839324171548.483180099328
28 × 19 × 61 × 607
2014-04-042566075.281e-51.182e-52.239e-5
10924619644450866746631854790312479.674441409389751516615
5 × 11 × 13 × 71 × 1021 × 1949 × 4369579
2014-12-1719494369579193,4560.01030.0191

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2014-12-17alpertronManual testing300000100000001222479.6740.0368.190%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2014-04-04TJAOIManual testing??
48.483
15


ECM factoring results:
Total ECM effort:17.619 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002819.88
25000025000000447.737


Lucas-Lehmer results:
No L-L results for M1092461


PRP results:
dateuseridcompidcofactorsres64
2017-09-29Oliver KruseGTX-2
6554767
393502983932417
964445086674663185479031
84C0E5B6E5BFE4E4
2017-10-05Oliver KruseManual testing
6554767
393502983932417
964445086674663185479031
84C0E5B6E5BFE4E4
2017-10-16Oliver KruseThreadripper-PC
6554767
393502983932417
964445086674663185479031
84C0E5B6E5BFE4E4
2017-12-31ATHec2-1xh
6554767
393502983932417
964445086674663185479031
84C0E5B6E5BFE4E4


CERT results:
No CERT results for M1092461


P-1 factor-bounds graph:
B1 = 300000, B2 = 10000000 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
TF factor-bounds graph:
this exponent TF target: 60
TF double-checked to: 67
ECM T-Level=25.66 ~= 69-bit
250
260
270
280
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00