is 2 90055543 - 1
has 27109420 decimal digits
takes 303.604 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
Actual276169.939564.4737 %730000140525007.11673.5227 %177.056265.7252 %
Target27584.968864.0000 %60000010000000029.40654.0574 %114.375265.4607 %
Difference+1+84.9707+0.4737 %+130000-85947500-22.2897-0.5347 %+62.6810+0.2645 %

Known prime factors (1 factor, 90.0 bits, 0.00009990% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9005554312070186723473477551218639372889.9646701523482831854976
27 × 13 × 2161 × 343391 × 5427209
2018-12-2634339154272091,969,5153.03263.4163

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-02-25c10ck3rManual testing1000010000--0.0530.091%
2018-12-26Godtop-1onion73000014052500622889.9647.1173.880%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-01-09Carsten Kossendeymother2652660.083
2010-02-08Carsten Kossendeymother2662670.166
2010-11-16Carsten KossendeyManual testing2672680.332
2012-05-23Carsten KossendeyManual testing2682690.664
2013-11-15Carsten KossendeyManual testing2692701.328
2014-09-04ANONYMOUSManual testing2702712.655
2015-07-10Carsten KossendeyManual testing2712725.311
2016-07-06Carsten KossendeyManual testing27227310.62
2017-10-23Carsten KossendeyManual testing27327421.24
2018-12-09Kevin JagetManual testing274276127.5


ECM factoring results:
No ECM results for M90055543


Lucas-Lehmer results:
No L-L results for M90055543


PRP results:
No PRP results for M90055543


CERT results:
No CERT results for M90055543


P-1 factor-bounds graph:
B1 = 730000, B2 = 14052500 (P-1 stage 2)
B1 = 730000 (P-1 stage 1)
B1 = 10000 (P-1 stage 1)
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105
106
103
104
105
106
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108
TF factor-bounds graph:
276
274
273
272
271
270
269
268
267
266
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00