is 2 54204949 - 1
has 16317316 decimal digits
takes 107.092 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
Actual2681.099661.7647 %----1.099661.7647 %
Target27335.289164.3836 %3600006000000010.33993.9228 %45.629065.7807 %
Difference-5-34.1895-2.6189 %-360000-60000000-10.3399-3.9228 %-44.5294-4.0160 %

Known prime factors (1 factor, 89.6 bits, 0.00016536% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
542049499595021069410121107103762492789.6328850687295554988076
22 × 233 × 43013 × 98563 × 2239997
2011-07-039856322399972,370,9940.61660.6530

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-07-03TheJudgerSinope2789.6324.6520.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.21000e-5
2000-03-01ANONYMOUSv4_computers212544.43000e-5
2000-05-24ANONYMOUSv4_computers212560.000
2001-08-26ANONYMOUSv4_computers212570.000
2002-08-24ANONYMOUSv4_computers212580.001
2003-06-06oerwinv4_computers212590.001
2003-10-31oerwinv4_computers212620.006
2008-05-10ANONYMOUSv4_computers212630.018
2008-12-211997rj7Manual testing212640.036
2009-01-27stephensonIBM_Laptop_x312642650.069
2009-01-28craigfjhome2652670.414
2009-05-05vidmarWork2672680.551


ECM factoring results:
No ECM results for M54204949


Lucas-Lehmer results:
No L-L results for M54204949


PRP results:
No PRP results for M54204949


CERT results:
No CERT results for M54204949


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
TF factor-bounds graph:
268
267
265
264
263
262
259
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00