is 2 54410621 - 1
has 16379230 decimal digits
takes 107.499 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
Actual2692.194262.3188 %----2.194262.3188 %
Target27335.155764.3836 %3600006000000010.33993.9247 %45.495665.7814 %
Difference-4-32.9615-2.0647 %-360000-60000000-10.3399-3.9247 %-43.3014-3.4626 %

Known prime factors (1 factor, 74.2 bits, 0.00013631% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
54410621211771622933133385954332374.165194605041296196
22 × 32 × 37 × 59 × 44983 × 55049
2011-08-194498355049131.140.13040.2623

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-08-19Sebastian HornbostelHome-Core_i52374.1651.8330.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.21000e-5
2000-03-01ANONYMOUSv4_computers212544.41000e-5
2000-05-31ANONYMOUSv4_computers212560.000
2001-08-31ANONYMOUSv4_computers212570.000
2002-09-07ANONYMOUSv4_computers212580.001
2003-11-28oerwinv4_computers212620.006
2008-06-27Corbyguymonaco2622630.018
2008-12-191997rj7Manual testing212640.036
2009-02-27ANONYMOUS2642650.069
2009-02-28glennpatlinux-shawnnx2652660.137
2009-03-04dmbleess2008desktop2662670.275
2009-05-09Sturle Sundeheroe.ifi2672680.549
2011-04-03Aldo_GridGiancarlo2682691.099


ECM factoring results:
No ECM results for M54410621


Lucas-Lehmer results:
No L-L results for M54410621


PRP results:
No PRP results for M54410621


CERT results:
No CERT results for M54410621


P-1 factor-bounds graph:
103
104
105
103
104
105
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