is 2 90939509 - 1
has 27375520 decimal digits
takes 329.403 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
Actual277336.577264.9351%6850006850003.59781.2803%340.175065.3840%0.4489%
PrimeNet2715.257161.9718%400000180000007.13725.5511%12.394364.0828%2.1110%
GPU7227584.142864.0000%600000220000009.27514.1353%93.417965.4887%1.4887%
Difference+2+252.4344+0.9351%+85000-21315000-5.6773-2.8550%+246.7571-0.1047%-0.1047%

Known prime factors (1 factor, 83.1 bits, 0.00009143% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
90939509107286731740573078701375912683.15058987965143166255
32 × 5 × 7 × 401 × 3121 × 11779 × 12703
2019-03-23117791270324,9680.06210.1259

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2019-03-23T22:53:57Jwb52zClay6850006850002683.1503.598658.87.1961.280%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-20T01:48:00Carsten Kossendeyleela264265--0.041--
2010-09-30T22:18:00Carsten Kossendeymother265266--0.082--
2010-12-28T15:52:00Carsten KossendeyManual testing266267--0.164--
2011-07-28T05:14:00Carsten KossendeyManual testing267268--0.329--
2012-06-23T06:54:00Carsten KossendeyManual testing268269--0.657--
2014-04-05T00:32:00SMoffatManual testing269270--1.315--
2014-09-05T03:47:00SMoffatManual testing270271--2.630--
2016-05-12T18:14:13Carsten KossendeyManual testing271272--5.259--
2017-08-01T13:29:10Carsten KossendeyManual testing272273--10.52--
2018-12-09T18:21:08TheJudgerManual testing273274--21.04--
2018-12-09T18:21:08TheJudgerManual testing274275--42.07--
2018-12-09T18:21:08TheJudgerManual testing275276--84.14--
2019-01-27T22:55:29TheJudgerManual testing276277--168.3--


ECM factoring results:
No ECM results for M90939509


Lucas-Lehmer results:
No L-L results for M90939509


PRP results:
No PRP results for M90939509


P-1 factor-bounds graph:
B1 = 685000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
277
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275
274
273
272
271
270
269
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266
265
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2100
Last modified: 2019-03-23T22:53:57+00:00