is 2 98621293 - 1
has 29687968 decimal digits
takes 376.131 GHz-days to do one PRP 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
Actual278620.723065.3846%715000134062507.77792.8895%628.500968.2741%5.7741%
PrimeNet2729.697062.5000%400000200000008.11755.1905%17.814567.6905%5.1905%
GPU72276155.179464.4737%6500002200000010.02733.8339%165.206768.3076%3.8339%
Difference+2+465.5436+0.9109%+65000-8593750-2.2494-0.9445%+463.2942-0.0335%-0.0335%

Known prime factors (1 factor, 84.5 bits, 0.00008566% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
98621293269284901128529587445448312684.477136524726525604155
3 × 5 × 30467 × 140381 × 2128051
14038121280512020-05-2464,6201.37521.5800

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-05-24T17:44:44Ge yongWork2018QQ7150001340625062684.4777.778752.315.562.889%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-01-20T10:40:00For Researchm1_04264265--0.038--
2013-07-27T08:10:00Le ComteManual testing265266--0.076--
2013-07-28T23:51:00SMoffatManual testing266267--0.152--
2013-07-30T00:11:00SMoffatManual testing267268--0.303--
2013-08-01T00:29:00SMoffatManual testing268269--0.606--
2013-08-10T18:52:00Le ComteManual testing269270--1.212--
2013-08-13T15:11:00RobishManual testing270271--2.425--
2018-12-16T15:55:51Niels_Mache_NextcloudManual testing271272--4.849--
2019-04-06T09:47:12Niels_Mache_NextcloudManual testing272273--9.70--
2019-11-21T14:55:14bayanneManual testing273274--19.40--
2020-02-09T22:59:50TheJudgerManual testing274275--38.80--
2020-02-09T22:59:50TheJudgerManual testing275276--77.59--
2020-02-09T22:59:50TheJudgerManual testing276277--155.2--
2020-04-15T14:08:48SRBaseManual testing277278--310.4--


ECM factoring results:
Exponent "98621293" not found


Lucas-Lehmer results:
Exponent "98621293" not found


PRP results:
Exponent "98621293" not found


P-1 factor-bounds graph:
B1 = 715000, B2 = 13406250 (stage 2)
B1 = 715000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2020-05-24T17:44:44+00:00