is 2 86261069 - 1
has 25967170 decimal digits
takes 277.833 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
Actual276177.414864.4737%685000125012506.20573.3931%183.620565.6791%1.2054%
PrimeNet2715.542261.9718%360000170000005.91535.3907%11.457564.0218%2.0500%
GPU7227588.706464.0000%550000190000007.26313.9513%95.969565.4225%1.4225%
Difference+1+88.7084+0.4737%+135000-6498750-1.0575-0.5582%+87.6510+0.2567%+0.2567%

Known prime factors (1 factor, 76.5 bits, 0.00008871% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
862610691083476562691035603214732476.520628021757237344
25 × 23 × 626713 × 1361533
2018-03-026267131361533260.523.11395.9567

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-03-02T05:00:49Jwb52zClay685000125012502476.5206.206555.712.413.393%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-21T01:20:00Architects Cubedm1_70264265--0.043--
2010-11-23T20:20:00Michael CManual testing264265--0.043--
2010-11-23T20:20:00Michael CManual testing265266--0.087--
2011-03-09T00:19:00Michael CManual testing266267--0.173--
2013-03-10T10:53:00BClizzleManual testing267268--0.347--
2013-03-10T10:53:00BClizzleManual testing268269--0.693--
2013-03-10T10:53:00BClizzleManual testing269270--1.386--
2013-03-10T10:53:00BClizzleManual testing270271--2.772--
2017-03-31T16:55:13Judge HaleManual testing271272--5.544--
2017-03-31T17:55:13Judge HaleManual testing272273--11.09--
2017-06-01T02:58:57ANONYMOUSManual testing273274--22.18--
2017-12-27T14:27:42RichD0Manual testing274275--44.35--
2018-01-28T15:49:45TheJudgerManual testing275276--88.71--


ECM factoring results:
No ECM results for M86261069


Lucas-Lehmer results:
No L-L results for M86261069


PRP results:
No PRP results for M86261069


P-1 factor-bounds graph:
B1 = 685000, B2 = 12501250 (P-1 stage 2)
B1 = 685000 (P-1 stage 1)
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108
TF factor-bounds graph:
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2100
Last modified: 2018-03-02T05:00:49+00:00