is 2 84928609 - 1
has 25566059 decimal digits
takes 273.541 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
Actual276180.198364.4737%6700006700003.12901.4104%183.327464.9747%0.5010%
PrimeNet2715.629261.9718%360000170000005.91535.3806%11.544464.0180%2.0461%
GPU7227590.098164.0000%550000190000007.26313.9437%97.361365.4197%1.4197%
Difference+1+90.1002+0.4737%+120000-18330000-4.1341-2.5334%+85.9661-0.4450%-0.4450%

Known prime factors (1 factor, 77.9 bits, 0.00009171% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
849286092801633223693094282271832477.8911649404868795799
3 × 43 × 521 × 811 × 1931 × 15671		2017-12-11193115671681.720.01250.0184

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-12-11T21:50:26Jwb52zClay6700006700002477.8913.129547.16.2581.410%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-12-04T05:20:00Architects Cubedm1_82264265--0.044--
2012-08-07T06:14:00Carsten KossendeyManual testing265266--0.088--
2013-06-14T14:44:00willmoreManual testing266267--0.176--
2013-06-15T17:24:00PascalBieriManual testing267268--0.352--
2013-09-02T17:28:00SRS TechnologyManual testing268269--0.704--
2013-09-02T17:28:00SRS TechnologyManual testing269270--1.408--
2013-09-02T17:28:00SRS TechnologyManual testing270271--2.816--
2013-09-02T17:28:00SRS TechnologyManual testing271272--5.631--
2016-12-23T02:55:07Judge HaleManual testing272273--11.26--
2017-05-08T03:00:23ANONYMOUSManual testing273274--22.53--
2017-07-19T02:18:02Son JohanManual testing274275--45.05--
2017-07-21T09:02:13Mark RoseManual testing275276--90.10--


ECM factoring results:
No ECM results for M84928609


Lucas-Lehmer results:
No L-L results for M84928609


PRP results:
No PRP results for M84928609


P-1 factor-bounds graph:
B1 = 670000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
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267
266
265
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260
270
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2100
Last modified: 2017-12-11T21:50:26+00:00