is 2 54489623 - 1
has 16403011 decimal digits
takes 107.655 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
Actual2692.191062.3188 %----2.191062.3188 %
Target27335.104764.3836 %3600006000000010.33993.9254 %45.444765.7817 %
Difference-4-32.9137-2.0647 %-360000-60000000-10.3399-3.9254 %-43.2537-3.4628 %

Known prime factors (1 factor, 69.6 bits, 0.00012782% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
544896239238044846422908940892169.6468476884531228
22 × 3 × 42307 × 16697167
2011-05-1942307166971673.52462.72074.8675

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-05-19Paul LeylandManual testing2169.6462.4590.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.20000e-5
2000-03-01ANONYMOUSv4_computers212544.40000e-5
2000-05-31ANONYMOUSv4_computers212560.000
2001-08-31ANONYMOUSv4_computers212570.000
2002-09-14ANONYMOUSv4_computers212580.001
2004-03-26oerwinv4_computers212620.006
2008-07-05Corbyguymonaco2622630.018
2008-12-191997rj7Manual testing212640.036
2008-12-30TeamResslerTUB10623172642650.069
2008-12-31tmorrowteapot2652660.137
2009-01-03symallapresario2662670.274
2009-05-09subgeniusHDO-c12672680.549
2011-03-30UngelovendeManual testing2682691.097


ECM factoring results:
No ECM results for M54489623


Lucas-Lehmer results:
No L-L results for M54489623


PRP results:
No PRP results for M54489623


CERT results:
No CERT results for M54489623


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
108
TF factor-bounds graph:
269
268
267
266
265
264
263
262
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00