is 2 5938663 - 1
has 1787716 decimal digits
takes 1.052 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LAD01D90A3BC6CD5Bdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2675.003565.6716 %250002437500.00951.3059 %5.013066.1199 %
Target2662.486865.1515 %4000040000000.06572.3438 %2.552565.9683 %
Difference+1+2.5166+0.5201 %-15000-3756250-0.0562-1.0379 %+2.4604+0.1517 %

Known prime factors (1 factor, 72.6 bits, 0.00122268% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
593866372106936731543087951672272.611607097394914841
32 × 43 × 433 × 38543 × 93997
2011-06-223854393997270.540.01070.0202

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-01-08ANONYMOUSv4_computers25000243750--0.0091.507%
2011-06-22USAFSSP4_26002272.6110.0330.000%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-11-21ANONYMOUSv4_computers212620.052


ECM factoring results:
No ECM results for M5938663


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-12-21ANONYMOUSv4_computersAD01D90A3BC6CD5B1.052


PRP results:
dateuseridcompidcofactorsres64
2017-09-20kkmrkkblmbrbkManual testing
7210693673154308795167
80060D1F4D299F33
2018-09-13rucio
7210693673154308795167
80060D1F4D299F33


CERT results:
No CERT results for M5938663


P-1 factor-bounds graph:
B1 = 25000, B2 = 243750 (P-1 stage 2)
B1 = 25000 (P-1 stage 1)
103
104
105
103
104
105
106
TF factor-bounds graph:
262
this exponent TF target: 66
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00