is 287011501-1
has 26,193,072 decimal digits
takes 280.250 GHz-days to do one L-L test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276175.884764.4737%705,00013,923,7506.65603.4860%182.540767.9597%5.9879%
PrimeNet2715.494461.9718%360,00017,000,0005.91535.3963%11.409767.3682%5.3963%
GPU7227587.941364.0000%550,00020,000,0007.51763.9939%95.458967.9939%3.9939%
Difference+1+87.9434+0.4737%+155,000-6,076,250-0.8616-0.5079%+87.0817-0.0342%-0.0342%

Known prime factors (1 factor, 137.0 bits, 0.00015750% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
8701150117912678537365158091104812300176803826255142137.0401029328211299627970508451078218775
52 × 13 × 2671 × 8821 × 31729 × 270899 × 464467 × 33671321
464,46733,671,3212018-04-161.494e+910.61916.002

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-04-17T02:38:28Oliver KruseHTC0705,00013,923,7501242137.0406.656560.513.313.486%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-14T23:20:00For Researchm1_81264265--0.043--
2012-11-16T20:16:00SpecOpUsMatts-Laptop265266--0.086--
2013-03-03T06:46:00VolondVadik266267--0.172--
2013-08-20T07:56:00Oliver KruseJan-12267268--0.344--
2013-10-22T02:08:00SMoffatManual testing268269--0.687--
2014-01-19T07:36:00Ryan PropperManual testing269270--1.374--
2014-03-06T00:10:00SMoffatManual testing270271--2.748--
2017-04-30T20:05:05Strolling JellyfishManual testing271272--5.496--
2017-04-30T20:05:05Strolling JellyfishManual testing272273--10.99--
2017-06-12T12:50:30ANONYMOUSManual testing273274--21.99--
2018-03-02T01:30:50RichD0Manual testing274275--43.97--
2018-03-11T15:37:48TheJudgerManual testing275276--87.94--


ECM factoring results:
Exponent "87011501" not found


Lucas-Lehmer results:
Exponent "87011501" not found


PRP results:
Exponent "87011501" not found


P-1 factor-bounds graph:
B1 = 705,000, B2 = 13,923,750 (stage 2)
B1 = 705,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2018-04-17T02:38:28+00:00