is 2 1791043 - 1
has 539158 decimal digits
takes 0.097 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LAE5AE01F75D739EBdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26716.590368.6567 %500000150000000.10155.0554 %16.691870.2413 %
Target2610.171565.5738 %80006500000.00341.4936 %0.174966.0879 %
Difference+6+16.4188+3.0829 %+492000+14350000+0.0981+3.5619%+16.5169+4.1533 %

Known prime factors (1 factor, 64.0 bits, 0.00357333% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1791043184454628878072829912064.0005149363495965
3 × 5 × 132 × 2031307099
2009-07-0916920313070991.20078.705716.260

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-03-16alpertronManual testing5000001500000012---8.844%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-01-25ANONYMOUSv4_computers212580.021


ECM factoring results:
Total ECM effort:38.570 GHz-days
Estimated T-Level:25.714
DigitsB1CompleteFacMiss
201100014.7080.000%
25500001.67318.766%
302500000.14386.697%
3510000000.01099.015%


ECM Summary

B1B2factorcurvesGHz-days
10.155
50000500000025517.52
250000400000004920.90


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-01-02curtiscv4_computersAE5AE01F75D739EB0.097


PRP results:
dateuseridcompidcofactorsres64
2017-10-03Oliver KruseGTX-3
18445462887807282991
DAD862166618A49A
2017-11-05kkmrkkblmbrbkc4.xlarge
18445462887807282991
DAD862166618A49A


CERT results:
No CERT results for M1791043


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
258
this exponent TF target: 61
TF double-checked to: 67
ECM T-Level=25.71 ~= 69-bit
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00