is 2 54543241 - 1
has 16419152 decimal digits
takes 107.761 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
Actual2704.380962.8571 %----4.380962.8571 %
Target27335.070264.3836 %3600006000000010.33993.9259 %45.410265.7818 %
Difference-3-30.6893-1.5264 %-360000-60000000-10.3399-3.9259 %-41.0292-2.9247 %

Known prime factors (1 factor, 66.6 bits, 0.00012203% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
545432411085979409157796662892166.558995521524984
23 × 33 × 72 × 19 × 4950479
2009-01-094949504790.42520.77281.4431

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-01-09Team Prime Ribv4_computers2166.5583.1260.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2009-01-14Team Prime Ribv4_computers??
66.558
21
1999-12-15ANONYMOUSv4_computers212532.20000e-5
2000-03-01ANONYMOUSv4_computers212544.40000e-5
2000-05-31ANONYMOUSv4_computers212560.000
2001-08-31ANONYMOUSv4_computers212570.000
2002-09-22ANONYMOUSv4_computers212580.001
2008-07-07monstguinness2622630.018
2008-12-29JohanSeland2632640.036
2022-06-06LordJuliusManual testing21266
2022-06-06LordJuliusManual testing267270


ECM factoring results:
No ECM results for M54543241


Lucas-Lehmer results:
No L-L results for M54543241


PRP results:
No PRP results for M54543241


CERT results:
No CERT results for M54543241


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
TF factor-bounds graph:
270
266
264
263
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