is 2 84557219 - 1
has 25454260 decimal digits
takes 263.860 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
Actual276180.989864.4737%670000123950005.92203.3692%186.911865.6706%1.1970%
PrimeNet2715.653961.9718%360000170000005.73105.3778%11.384964.0169%2.0451%
GPU7227590.493964.0000%550000190000007.03693.9416%97.530765.4190%1.4190%
Difference+1+90.4959+0.4737%+120000-6605000-1.1149-0.5724%+89.3811+0.2517%+0.2517%

Known prime factors (1 factor, 106.3 bits, 0.00012569% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
845572199827222873851075532130937133059332106.277581098987766560506923184
24 × 3 × 19 × 32887 × 42299 × 247691 × 1849229
2017-11-2124769118492291.690e+91.51552.2809

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-11-22T01:27:02Jwb52zClay6700001239500032106.2775.922527.711.843.369%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-12-09T02:20:00Architects Cubedm1_54264265--0.044--
2012-08-13T07:29:00Carsten KossendeyManual testing265266--0.088--
2013-08-18T09:22:00RobishManual testing266267--0.177--
2013-08-18T16:11:00RobishManual testing267268--0.353--
2013-08-19T17:42:00RobishManual testing268269--0.707--
2013-08-20T18:17:00RobishManual testing269270--1.414--
2014-09-13T00:27:00SMoffatManual testing270271--2.828--
2017-02-04T00:47:48ANONYMOUSManual testing271272--5.656--
2017-02-04T00:47:48ANONYMOUSManual testing272273--11.31--
2017-02-04T00:47:48ANONYMOUSManual testing273274--22.62--
2017-05-05T20:37:45ktonyManual testing274275--45.25--
2017-05-05T20:37:45ktonyManual testing275276--90.50--


ECM factoring results:
No ECM results for M84557219


Lucas-Lehmer results:
No L-L results for M84557219


PRP results:
No PRP results for M84557219


P-1 factor-bounds graph:
B1 = 670000, B2 = 12395000 (P-1 stage 2)
B1 = 670000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2017-11-22T01:27:02+00:00