is 2 75143581 - 1
has 22620472 decimal digits
takes 207.749 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2670.395459.7015%----0.395459.7015%0.0000%
PrimeNet2703.179961.4286%320000140000004.27075.5587%7.450663.5726%2.1441%
GPU7227450.914163.5135%500000180000005.82664.1840%56.740765.0401%1.5266%
Difference-7-50.5186-3.8120%-500000-18000000-5.8266-4.1840%-56.3452-5.3386%-5.3386%

Known prime factors (4 factors, 183.8 bits, 0.00024464% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
75143581450861487928.7483
3
-134.762e-134.446e-68.159e-6
75143581387937754142231445.141258131
258131
2008-09-1112581311.168e-70.05640.1053
751435813022808347245111548.1032011355
5 × 17 × 23663
2008-09-1117236636.778e-70.00520.0097
7514358141281833628785995531961.84027468636096
26 × 3 × 11 × 331 × 39293
2016-06-06331392930.00500.00980.0160

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
75143581174906192696006227296012373.889
751435811362867866354942648078572476.851
7514358118612388895961059949431153112890.588
75143581117266148143265409211161199532993.244
7514358116014781824824424049584471764231933106.981
75143581124787071282678197005540424274358334109.943
75143581528707899266349314326076354167995011137121.992
751435817220448347520913340914216671731107846835341135.729
7514358156261684516883289244396902926948079108792142138.691
751435814840961617938854399963419770929965323780018100947155.084
7514358121826031535738377698440001835266835387378954218586
900383
56183.832
P-1 results:
No P-1 results for M75143581


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-11T17:35:00Will EdgingtonManual testing??48.103151.78759e-7426.83.67260e-7
2008-09-11T17:35:00Will EdgingtonManual testing??45.141145.44242e-8426.81.11815e-7
2016-06-06T15:13:28TJAOIManual testing261262*61.840190.001426.80.002


ECM factoring results:
No ECM results for M75143581


Lucas-Lehmer results:
No L-L results for M75143581


PRP results:
No PRP results for M75143581


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
TF factor-bounds graph:
267
262
2
220
230
240
250
260
270
280
290
2100
Last modified: 2016-06-06T15:13:28+00:00