is 278724411-1
has 23,698,410 decimal digits
takes 245.658 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
Actual276194.399664.4737%----194.399664.4737%2.5019%
PrimeNet2716.072861.9718%340,00016,000,0005.39895.2366%11.471767.2084%5.2366%
GPU7227597.198764.0000%500,00017,000,0006.32993.7752%103.528667.7752%3.7752%
Difference+1+97.2009+0.4737%-500,000-17,000,000-6.3299-3.7752%+90.8710-3.3015%-3.3015%

Known prime factors (1 factor, 159.0 bits, 0.00020198% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
7872441173427745186474716751050280529893054545047844587948159.0074663594446357605441535172649935294818849
32 × 712 × 972 × 151 × 257 × 653 × 1039 × 6959 × 97549 × 367739 × 1662149
367,7391,662,1492016-10-231.717e+91.98303.3863

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-10-23T22:09:53For Researchpfs-734,277,451,864,747,136-510,502,805,298,930,56048159.007-491.3-nan%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-06-30T00:00:00Jocelyn Larouchev4_computers?257--0.000--
2008-02-03T00:00:001997rj7v4_computers?263--0.012--
2008-04-07T00:00:001997rj7v4_computers?264--0.025--
2011-04-25T18:37:00Carsten KossendeyManual testing264267--0.332--
2012-04-12T03:33:00wangyun183Manual testing267268--0.380--
2013-02-11T03:48:00Clown_RoyalManual testing268269--0.759--
2013-02-18T05:29:00Smok_bmvManual testing269270--1.519--
2013-06-12T13:46:00Norman LeyManual testing270271--3.038--
2015-09-01T18:54:00RichD0Manual testing271272--6.075--
2016-06-11T18:27:32BdotManual testing272273--12.15--
2016-06-17T19:25:32AirSquirrelsManual testing273274--24.30--
2016-06-17T20:50:32AirSquirrelsManual testing274275--48.60--
2020-07-30T14:05:20schoenbornManual testing275276--97.20--


ECM factoring results:
Exponent "78724411" not found


Lucas-Lehmer results:
Exponent "78724411" not found


PRP results:
Exponent "78724411" not found


P-1 factor-bounds graph:
TF factor-bounds graph:
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Last modified: 2020-07-30T14:05:20+00:00