is 281972001-1
has 24,676,032 decimal digits
takes 255.792 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
Actual27593.347864.0000%700,00014,175,0006.48913.8239%99.837067.8239%5.8521%
PrimeNet2715.832261.9718%340,00016,000,0005.39895.2624%11.231167.2342%5.2624%
GPU7227593.347864.0000%550,00018,000,0006.79033.8864%100.138267.8864%3.8864%
Difference---+150,000-3,825,000-0.3012-0.0625%-0.3012-0.0625%-0.0625%

Known prime factors (1 factor, 121.7 bits, 0.00014844% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
81972001424680344112640877398631611031538496737121.67625903987881950135473613216483
72 × 13 × 12757 × 38603 × 67987 × 367049 × 3309083
367,0493,309,0832016-09-182.241e+92.38613.3800

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-09-18T19:53:04Judge HalePrissy700,00014,175,000637121.6766.489511.612.983.824%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-28T11:50:00For Researchm1_46264265--0.046--
2011-03-03T22:45:00bzmManual testing265267--0.273--
2011-03-03T22:45:00bzmManual testing267268--0.365--
2011-03-03T22:45:00bzmManual testing268269--0.729--
2011-03-03T22:45:00bzmManual testing269270--1.459--
2011-03-03T22:45:00bzmManual testing270271--2.917--
2016-07-14T06:17:58Son JohanManual testing271272--5.834--
2016-07-14T06:17:58Son JohanManual testing272273--11.67--
2016-09-07T06:26:02Sid & AndyManual testing273274--23.34--
2016-09-07T06:26:02Sid & AndyManual testing274275--46.67--


ECM factoring results:
Exponent "81972001" not found


Lucas-Lehmer results:
Exponent "81972001" not found


PRP results:
Exponent "81972001" not found


P-1 factor-bounds graph:
B1 = 700,000, B2 = 14,175,000 (stage 2)
B1 = 700,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2016-09-18T19:53:04+00:00