is 2 17535649 - 1
has 5278757 decimal digits
takes 9.986 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L6511D3B91FB39B7Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual273109.083265.7534 %10000001213911306.24165.8403 %115.324867.7535 %
Target2696.808263.7681 %120000170000000.85843.3532 %7.666764.9831 %
Difference+4+102.2749+1.9853 %+880000+104391130+5.3832+2.4871%+107.6581+2.7705 %

Known prime factors (1 factor, 106.8 bits, 0.00060923% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1753564914449119769899238142783014570691333106.8334119927289232134534280144
24 × 29 × 353 × 2939 × 9857 × 15361 × 56524019
2022-02-2515361565240191.087e+102.55484.7492

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2004-01-18ANONYMOUSv4_computers2200005445000--0.4174.067%
2022-02-25masserManual testing1000000121391130233106.8337.0948.252%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-02-11Net_Forcev4_computers212580.002
2001-03-25Net_Forcev4_computers212590.002
2001-11-10ANONYMOUSv4_computers212650.213
2016-03-19Mark RoseManual testing265266
2014-08-30NesowaManual testing2662670.852
2018-03-11ramgeisManual testing2672695.114
2020-04-13lycornManual testing2692706.818
2021-09-10SRBaseManual testing27027113.64
2021-09-14ANONYMOUSManual testing27127227.27
2022-01-11TheJudgerManual testing27227354.55


ECM factoring results:
Total ECM effort:0.866 GHz-days
Estimated T-Level:0.192
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.866


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-01-27ANONYMOUSv4_computers6511D3B91FB39B7C9.99
2006-10-24xylopsv4_computers6511D3B91FB39B7C9.99


PRP results:
No PRP results for M17535649


CERT results:
No CERT results for M17535649


P-1 factor-bounds graph:
B1 = 1000000, B2 = 121391130 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 220000, B2 = 5445000 (P-1 stage 2)
B1 = 220000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
TF factor-bounds graph:
273
272
271
270
269
267
266
265
259
258
this exponent TF target: 69
TF double-checked to: 67
ECM T-Level=0.19 ~= -16-bit
250
260
270
280
290
2100
2110
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Last modified: 2024-03-13T02:15:48+00:00