is 2 90387127 - 1
has 27209237 decimal digits
takes 304.722 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
Actual277338.634164.9351%680000120700006.35763.0662%344.991766.0102%1.0752%
PrimeNet2715.289261.9718%400000180000006.64285.5470%11.932064.0813%2.1094%
GPU7227584.657164.0000%600000200000008.09994.0592%92.756965.4613%1.4613%
Difference+2+253.9771+0.9351%+80000-7930000-1.7423-0.9930%+252.2348+0.5489%+0.5489%

Known prime factors (1 factor, 84.1 bits, 0.00009307% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
90387127211148893994278658875458412684.126116802525427253960
23 × 5 × 7 × 31 × 41 × 85061 × 3858497
2019-01-3085061385849744,6591.42081.9194

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2019-01-30T18:25:30Jwb52zClay680000120700002684.1266.358609.412.723.066%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-02-26T01:03:00Carsten Kossendeyleela264265--0.041--
2010-09-15T14:02:00Carsten Kossendeyleela265266--0.083--
2010-11-21T20:54:00Carsten KossendeyManual testing266267--0.165--
2011-03-06T02:11:00Carsten KossendeyManual testing267268--0.331--
2013-06-26T06:14:00Carsten KossendeyManual testing268269--0.661--
2013-12-19T09:13:00Carsten KossendeyManual testing269270--1.323--
2014-11-24T18:06:00Earle LoweManual testing270271--2.646--
2016-01-14T08:55:14Carsten KossendeyManual testing271272--5.291--
2016-12-26T19:10:23Carsten KossendeyManual testing272273--10.58--
2018-07-11T12:27:14Carsten KossendeyManual testing273274--21.16--
2018-12-02T22:38:51TheJudgerManual testing274275--42.33--
2018-12-02T22:38:51TheJudgerManual testing275276--84.66--
2019-01-27T22:53:57TheJudgerManual testing276277--169.3--


ECM factoring results:
No ECM results for M90387127


Lucas-Lehmer results:
No L-L results for M90387127


PRP results:
No PRP results for M90387127


P-1 factor-bounds graph:
B1 = 680000, B2 = 12070000 (P-1 stage 2)
B1 = 680000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2019-01-30T18:25:30+00:00