is 2 54545273 - 1
has 16419764 decimal digits
takes 107.765 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
Actual27217.532863.8889 %----17.532863.8889 %
Target27335.068964.3836 %3600006000000010.33993.9259 %45.408865.7818 %
Difference-1-17.5361-0.4947 %-360000-60000000-10.3399-3.9259 %-27.8760-1.8929 %

Known prime factors (1 factor, 72.1 bits, 0.00013211% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5454527349241094694344946764712272.06045137820370195
5 × 72 × 56909 × 3237379
2012-05-2956909323737921.3850.65940.9437

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-05-29Jerry HallettTF32272.0603.2960.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
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
2008-06-28monstguinness2622630.018
2008-12-29SyntonyJetstream2632640.036
2009-05-14korvadualcore12642650.069
2009-05-20korvadualcore12652660.137
2009-05-24jfarekCarnegie52662670.274
2009-05-28jfarekCarnegie52672680.548
2011-03-30UngelovendeManual testing2682691.096
2022-06-06LordJuliusManual testing21270
2011-10-11dmaineManual testing2692702.192
2011-12-03rduerrManual testing2702714.384
2012-05-18Kevin JagetManual testing2712728.768


ECM factoring results:
No ECM results for M54545273


Lucas-Lehmer results:
No L-L results for M54545273


PRP results:
No PRP results for M54545273


CERT results:
No CERT results for M54545273


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
TF factor-bounds graph:
272
271
270
269
268
267
266
265
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