is 271754791-1
has 21,600,345 decimal digits
takes 191.844 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
Actual27453.318663.5135%665,00013,965,0005.38724.1056%58.705867.6191%6.1905%
PrimeNet2703.330161.4286%300,00014,000,0004.05675.4831%7.386866.9117%5.4831%
GPU7227453.318663.5135%500,00017,000,0005.42344.1158%58.742067.6293%4.1158%
Difference---+165,000-3,035,000-0.0362-0.0102%-0.0362-0.0102%-0.0102%

Known prime factors (1 factor, 121.3 bits, 0.00016907% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
71754791330749646045006788606525587887968863337121.31523047216878173806443567342276
22 × 32 × 263 × 3319 × 22283 × 42433 × 504661 × 1537007
504,6611,537,0072015-04-052.458e+92.17453.9817

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-04-05T16:21:00TheJudgerManual testing665,00013,965,0001237121.3155.387383.710.774.106%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2002-05-05T00:00:00Jocelyn Larouchev4_computers?257--0.000--
2008-09-29T09:18:00ANONYMOUSManual testing?264--0.027--
2010-06-28T08:18:00alwaysprimeilovegimps264265--0.052--
2010-07-02T10:08:00yangzhouyu265266--0.104--
2010-07-03T21:31:00krnb10040837jc266267--0.208--
2010-07-05T10:58:00Bold_Seekerpatws9267268--0.417--
2010-07-11T02:13:00ANONYMOUSdesktop_1268269--0.833--
2012-05-08T12:38:00ANONYMOUS269270--1.666--
2012-11-29T18:31:00vats09Semp_7_64270271--3.333--
2015-02-12T06:40:00srow7Manual testing271272--6.665--
2015-03-21T03:27:00BdotManual testing272273--13.33--
2015-03-26T07:11:00LaurVManual testing273274--26.66--


ECM factoring results:
Exponent "71754791" not found


Lucas-Lehmer results:
Exponent "71754791" not found


PRP results:
Exponent "71754791" not found


P-1 factor-bounds graph:
B1 = 665,000, B2 = 13,965,000 (stage 2)
B1 = 665,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2015-04-05T16:21:00+00:00