is 2 48722057 - 1
has 14666801 decimal digits
takes 84.587 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
Actual2692.450462.3188 %----2.450462.3188 %
Target27219.628463.8889 %340000550000008.35274.1731 %27.981065.3958 %
Difference-3-17.1780-1.5700 %-340000-55000000-8.3527-4.1731 %-25.5307-3.0770 %

Known prime factors (1 factor, 75.0 bits, 0.00015399% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
48722057384576015691169272437592375.026394663156043647
109 × 193 × 2089 × 8980579
2010-10-2620898980579247.041.23672.3005

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-10-26kostadinovngage2375.0263.2430.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-06-09Thomas Mullenv4_computers212590.001
2008-06-02sasaki3v4_computers212691.227


ECM factoring results:
No ECM results for M48722057


Lucas-Lehmer results:
No L-L results for M48722057


PRP results:
No PRP results for M48722057


CERT results:
No CERT results for M48722057


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
TF factor-bounds graph:
269
259
this exponent TF target: 72
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00