is 2 63545759 - 1
has 19129180 decimal digits
takes 149.274 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
Actual27460.206564.8649 %----60.206564.8649 %
Target27460.206564.8649 %4000007000000014.27863.7875 %74.485166.1956 %
Difference----400000-70000000-14.2786-3.7875 %-14.2786-1.3307 %

Known prime factors (1 factor, 109.7 bits, 0.00017257% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
63545759102802950379961570350958059082519934109.6648088891532475170400510761
13 × 7001 × 7487 × 49211 × 474379 × 508499
2013-09-194743795084992.257e+91.62213.2885

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2013-09-19Architects CubedR720_634109.6641.9420.000%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-08-25Gordon Spencev4_computers212590.001
2022-03-30LordJuliusManual testing21263
2009-02-25Wojciech Florekarmada42632640.031
2009-02-28NoWhereManAcer-laptop2642650.059
2009-03-01S00030vd062652660.118
2009-03-032knarfHyper282662670.235
2009-03-11linded23gpy702672680.470
2009-10-27korvadualcore12682690.941
2012-01-23trifdale2692701.882
2012-06-03Clown_RoyalManual testing2702713.763
2013-06-12TheJudgerManual testing27127322.58
2013-09-18GrunwalderGIMPManual testing27327430.10


ECM factoring results:
No ECM results for M63545759


Lucas-Lehmer results:
No L-L results for M63545759


PRP results:
No PRP results for M63545759


CERT results:
No CERT results for M63545759


P-1 factor-bounds graph:
104
105
106
104
105
106
TF factor-bounds graph:
274
273
271
270
269
268
267
266
265
264
263
259
this exponent TF target: 74
TF double-checked to: 67
250
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270
280
290
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2110
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Last modified: 2024-03-13T02:15:48+00:00