is 2 102719891 - 1
has 30921769 decimal digits
takes 408.989 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
Actual276148.987664.4737%8550001795500010.31493.8338%159.302668.3075%5.8075%
PrimeNet2729.310162.5000%450000220000009.37655.3819%18.686667.8819%5.3819%
GPU72276148.987664.4737%6500002200000010.46823.8530%159.455968.3267%3.8530%
Difference---+205000-4045000-0.1533-0.0192%-0.1533-0.0192%-0.0192%

Known prime factors (1 factor, 122.0 bits, 0.00011880% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
102719891544947721951304778657188800812094620137122.03626525910251954257752142124100
22 × 32 × 52 × 7 × 3041 × 27527 × 54059 × 105137 × 8849747
10513788497472021-02-191.704e+93.35765.1991

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-02-19T12:38:27Ben Deloi-0016e280292376c10855000179550001237122.03610.31818.020.633.834%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-18T14:36:001997rj7compw263264--0.019--
2010-08-19T16:46:00Cedric VonckOracle10g264265--0.036--
2012-04-25T10:12:00OS1L8265266--0.073--
2013-09-07T00:53:00processinfoManual testing266267--0.145--
2014-05-04T19:30:00symalladold_laptop267268--0.291--
2014-07-09T03:25:00SMoffatManual testing268269--0.582--
2014-07-16T03:21:00ANONYMOUSSrvrPO1269270--1.164--
2014-07-19T13:09:00S00030vd06270271--2.328--
2014-12-25T18:42:00Quantum SingularityManual testing271272--4.656--
2020-02-25T02:37:02lycornGPU72_TF272273--9.312--
2020-03-30T14:57:42SRBaseManual testing273274--18.62--
2020-11-13T00:59:01RichD0GPU72_TF274275--37.25--
2020-11-16T14:50:15DRobinsonPEManual testing275276--74.49--


ECM factoring results:
Exponent "102719891" not found


Lucas-Lehmer results:
Exponent "102719891" not found


PRP results:
Exponent "102719891" not found


P-1 factor-bounds graph:
B1 = 855000, B2 = 17955000 (stage 2)
B1 = 855000 (stage 1)
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104
105
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108
TF factor-bounds graph:
276
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274
273
272
271
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269
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2100
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Last modified: 2021-02-19T12:38:27+00:00