is 2 90020351 - 1
has 27098826 decimal digits
takes 303.485 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27585.002064.0000%41000088150004.24283.2736%89.244765.1785%3.2067%
PrimeNet2715.310861.9718%360000180000006.45795.4728%11.768764.0530%2.0812%
GPU7227585.002064.0000%600000200000008.09994.0572%93.101965.4606%1.4606%
Difference----190000-11185000-3.8571-0.7836%-3.8571-0.2821%-0.2821%

Known prime factors (1 factor, 74.8 bits, 0.00008305% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
90020351321213943067939852971512374.766178411847709825
34 × 52 × 431 × 204419063
2018-05-2743120441906345.67454.445101.69

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-02-25T21:35:36c10ck3rManual testing1000010000---0.049--0.091%
2018-03-09T02:02:58One ManManual testing41000088150002---4.243--3.274%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-02-02T03:26:00Carsten Kossendeydurandal265266--0.083--
2010-02-22T16:45:00Carsten Kossendeymother266267--0.166--
2010-03-07T15:24:00Carsten Kossendeymother267268--0.332--
2010-08-29T20:26:00Carsten KossendeyManual testing268269--0.664--
2010-11-12T22:40:00Carsten KossendeyManual testing269270--1.328--
2014-12-11T18:58:00JakeWManual testing270271--2.656--
2015-01-08T20:10:00Carsten KossendeyManual testing271272--5.313--
2016-06-15T22:06:35Carsten KossendeyManual testing272273--10.63--
2017-07-06T12:01:04Carsten KossendeyManual testing273274--21.25--
2018-05-28T03:20:09William F. Garnett IIIManual testing27427574.766233.174618.26.465


ECM factoring results:
Exponent "90020351" not found


Lucas-Lehmer results:
Exponent "90020351" not found


PRP results:
Exponent "90020351" not found


P-1 factor-bounds graph:
B1 = 410000, B2 = 8815000 (stage 2)
B1 = 410000 (stage 1)
B1 = 10000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2018-05-28T03:20:09+00:00