is 2 600000889 - 1
has 180618266 decimal digits
takes 18,145.860 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2746.376459.4595 %10000100000.43850.1813 %6.815059.5329 %
Target2833,264.884763.8554 %34000007500000001,932.87604.3045 %5,197.760765.4113 %
Difference-9-3,258.5083-4.3960 %-3390000-749990000-1,932.4375-4.1233 %-5,190.9458-5.8783 %

Known prime factors (1 factor, 86.5 bits, 0.00001441% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6000008891076540152812035137861250892786.47789711546478394896
24 × 32 × 11 × 239 × 1289 × 9521 × 19309
2012-07-2595211930926,1190.44090.8497

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-07-16Never Odd Or EvenI_Have_A_Dream...1000010000--0.4000.031%
2012-07-25Never Odd Or EvenI_Have_A_Dream...2786.4772.0000.000%


Trial Factoring results:
575859606162636465666768697071727374757677787980818283
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2023-10-18James HeinrichManual testing267268
2023-10-18James HeinrichManual testing268269
2009-05-04unconnectedManual testing2692700.199
2009-05-04unconnectedManual testing2702710.399
2009-06-01unconnectedE6400-12712720.797
2009-06-09unconnectedE6400-12722731.594
2012-07-22Never Odd Or EvenManual testing2732743.188


ECM factoring results:
No ECM results for M600000889


Lucas-Lehmer results:
No L-L results for M600000889


PRP results:
No PRP results for M600000889


CERT results:
No CERT results for M600000889


P-1 factor-bounds graph:
B1 = 10000 (P-1 stage 1)
102
103
104
102
103
104
105
TF factor-bounds graph:
274
273
272
271
270
269
268
this exponent TF target: 83
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00