is 2 85758499 - 1
has 25815881 decimal digits
takes 276.214 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276178.454564.4737%675000124875006.15803.3836%184.612665.6758%1.2021%
PrimeNet2715.574761.9718%360000170000005.91535.3869%11.490064.0204%2.0485%
GPU7227589.226264.0000%550000190000007.26313.9485%96.489465.4214%1.4214%
Difference+1+89.2283+0.4737%+125000-6512500-1.1051-0.5649%+88.1232+0.2543%+0.2543%

Known prime factors (1 factor, 87.4 bits, 0.00010188% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
857584992000746413647335590334192732787.3711166500368463384364
22 × 191 × 337 × 365179 × 12406687
2018-02-0436517912406687653,7494.76945.8961

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-02-05T00:47:25Jwb52zClay675000124875002787.3716.158552.412.323.384%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-28T19:20:00Architects Cubedm1_58264265--0.044--
2013-04-29T23:42:00c10ck3rManual testing265266--0.087--
2013-06-17T17:10:00PEDManual testing266267--0.174--
2013-06-22T19:17:00PEDManual testing267268--0.349--
2013-08-22T21:01:00processinfoManual testing268269--0.697--
2013-08-23T16:15:00Wayne Yeungjason269270--1.394--
2014-03-18T11:15:00tmorrowpaperclip270271--2.788--
2017-03-09T04:55:18Judge HaleManual testing271272--5.577--
2017-03-09T04:55:18Judge HaleManual testing272273--11.15--
2017-05-07T02:56:56ANONYMOUSManual testing273274--22.31--
2017-10-08T15:59:09TheJudgerManual testing274275--44.61--
2017-10-08T15:59:09TheJudgerManual testing275276--89.23--


ECM factoring results:
No ECM results for M85758499


Lucas-Lehmer results:
No L-L results for M85758499


PRP results:
No PRP results for M85758499


P-1 factor-bounds graph:
B1 = 675000, B2 = 12487500 (P-1 stage 2)
B1 = 675000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-02-05T00:47:25+00:00