is 2 95522173 - 1
has 28755040 decimal digits
takes 346.003 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
Actual27320.025163.0137 %9350002267375011.13155.3050 %31.156664.9758 %
Target27580.106164.0000 %65000011000000034.70514.2033 %114.811265.5132 %
Difference-2-60.0810-0.9863 %+285000-87326250-23.5736+1.1017%-83.6545-0.5374 %

Known prime factors (1 factor, 75.3 bits, 0.00007883% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
95522173465805814733968863062412375.302243820780089440
25 × 5 × 97849 × 15573791
2019-09-019784915573791113.744.94258.3236

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-09-01Ryan PropperManual testing93500022673750622375.30211.134.414%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-16Architects Cubedm1_602642650.039
2014-02-20Carsten KossendeyManual testing2652680.548
2014-03-26g0bManual testing2682690.626
2014-04-28g0bManual testing2692701.252
2014-10-05Larry LogoryManual testing2702712.503
2019-01-04ixfd64Manual testing27127315.02


ECM factoring results:
No ECM results for M95522173


Lucas-Lehmer results:
No L-L results for M95522173


PRP results:
No PRP results for M95522173


CERT results:
No CERT results for M95522173


P-1 factor-bounds graph:
B1 = 935000, B2 = 22673750 (P-1 stage 2)
B1 = 935000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
273
271
270
269
268
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00