is 291818157-1
has 27,640,020 decimal digits
takes 332.586 GHz-days to do one L-L 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
Actual277333.356364.9351%700,00013,125,0007.23203.1393%340.588468.0744%6.1026%
PrimeNet2715.206861.9718%400,00018,000,0007.13725.5574%12.344067.5293%5.5574%
GPU7227583.337664.0000%600,00022,000,0009.27514.1401%92.612768.1401%4.1401%
Difference+2+250.0187+0.9351%+100,000-8,875,000-2.0430-1.0008%+247.9757-0.0657%-0.0657%

Known prime factors (1 factor, 124.5 bits, 0.00013565% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
918181573109897449872658189948479448762586244938124.548169350897005733745556909808632
23 × 1237 × 1601 × 12391 × 146099 × 600979 × 9824797
600,9799,824,7972019-07-051.576e+95.79596.4240

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2019-07-05T15:56:59Maciej KmieciakAsrock_Windows700,00013,125,000638124.5487.232665.214.463.139%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-01-08T08:50:00For Researchm1_51264265--0.041--
2013-06-25T07:40:00David CampeauManual testing265266--0.081--
2014-02-06T15:57:00ANONYMOUS266267--0.163--
2014-02-08T04:51:00Dogbert948Haswell267268--0.326--
2014-04-13T03:13:00Preben SManual testing268269--0.651--
2014-04-16T05:53:00ITSCP_-_Server1269270--1.302--
2014-09-12T18:25:00ANONYMOUSManual testing270271--2.604--
2018-03-16T03:22:39Yizhe HuangManual testing271272--5.209--
2018-08-18T05:20:211997rj7Manual testing272273--10.42--
2018-08-21T09:00:06Tim SorberaManual testing273274--20.83--
2019-01-13T21:46:24TheJudgerManual testing274275--41.67--
2019-01-13T21:46:24TheJudgerManual testing275276--83.34--
2019-04-07T21:38:09TheJudgerManual testing276277--166.7--


ECM factoring results:
Exponent "91818157" not found


Lucas-Lehmer results:
Exponent "91818157" not found


PRP results:
Exponent "91818157" not found


P-1 factor-bounds graph:
B1 = 700,000, B2 = 13,125,000 (stage 2)
B1 = 700,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2019-07-05T15:56:59+00:00