is 2 35821717 - 1
has 10783412 decimal digits
takes 44.777 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L43CB68BFEB4C78C7double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27353.399064.3836 %40000087000001.54463.5395 %54.943665.6442 %
Target27113.346063.3803 %260000400000004.39564.0175 %17.741664.8515 %
Difference+2+40.0530+1.0033 %+140000-31300000-2.8510-0.4780 %+37.2020+0.7927 %

Known prime factors:
No known factors for M35821717

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2007-07-04ANONYMOUSv4_computers4000008700000--1.5454.325%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2004-08-20ANONYMOUSv4_computers212600.002
2006-02-15delongv4_computers212670.417
2007-07-04ANONYMOUSv4_computers212691.669
2014-09-19LaurVManual testing2692703.338
2014-10-03monstManual testing2702716.675
2022-07-17TheJudgerManual testing27127340.05


ECM factoring results:
No ECM results for M35821717


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2007-09-13ANONYMOUSv4_computers43CB68BFEB4C78C744.78
2014-10-28vwflat4DC143CB68BFEB4C78C744.78


PRP results:
No PRP results for M35821717


CERT results:
No CERT results for M35821717


P-1 factor-bounds graph:
B1 = 400000, B2 = 8700000 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
104
105
106
104
105
106
107
TF factor-bounds graph:
273
271
270
269
267
260
this exponent TF target: 71
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00