is 2 1759489 - 1
has 529659 decimal digits
takes 0.095 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LC692C6106226F265double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26716.887868.6567 %500000150000000.10155.0446 %16.989370.2379 %
Target2610.174665.5738 %80006000000.00321.4526 %0.177866.0738 %
Difference+6+16.7132+3.0829 %+492000+14400000+0.0983+3.5921%+16.8115+4.1640 %

Known prime factors (1 factor, 62.0 bits, 0.00352527% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
175948946977699922311841991962.0271334981347491
3 × 11 × 149 × 271503223
2010-08-311492715032230.34921.16362.1733

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-03-16alpertronManual testing5000001500000012---8.827%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-01-25ANONYMOUSv4_computers212580.022
2022-03-09LordJuliusManual testing21260
2022-03-08LordJuliusManual testing258260
2010-04-24Architects Cubedi4l_12602610.087


ECM factoring results:
Total ECM effort:38.587 GHz-days
Estimated T-Level:25.717
DigitsB1CompleteFacMiss
201100014.8230.000%
25500001.68418.567%
302500000.14386.638%
3510000000.01099.012%


ECM Summary

B1B2factorcurvesGHz-days
10.103
50000500000025817.64
250000400000004920.84


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-01-17ANONYMOUSv4_computersC692C6106226F2650.095


PRP results:
dateuseridcompidcofactorsres64
2017-10-03Oliver KruseGTX-3
4697769992231184199
003760EA85F4FC1F
2017-11-04kkmrkkblmbrbkc4.xlarge
4697769992231184199
003760EA85F4FC1F


CERT results:
No CERT results for M1759489


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
TF factor-bounds graph:
261
260
258
this exponent TF target: 61
TF double-checked to: 67
ECM T-Level=25.72 ~= 69-bit
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270
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Last modified: 2024-02-29T14:28:04+00:00