is 2 22556141 - 1
has 6790076 decimal digits
takes 17.140 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
Actual2671.317362.6866 %----1.317362.6866 %
Target2695.292963.7681 %170000250000001.67793.9805 %6.970865.2103 %
Difference-2-3.9755-1.0815 %-170000-25000000-1.6779-3.9805 %-5.6534-2.5237 %

Known prime factors (3 factors, 130.5 bits, 0.00057854% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2255614119278733712711340.81042735
3 × 5 × 7 × 11 × 37
2011-06-2711378.117e-91.368e-52.467e-5
2255614121098112045771340.94046768
24 × 37 × 79
2008-09-0837797.292e-94.329e-58.297e-5
225561414720269041208791548.74610463379
3 × 3487793
2011-06-27334877932.993e-60.20940.3911

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-06-27AxonManual testing2789.5560.9410.000%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-08Will EdgingtonManual testing??
40.940
13


ECM factoring results:
No ECM results for M22556141


Lucas-Lehmer results:
No L-L results for M22556141


PRP results:
No PRP results for M22556141


CERT results:
No CERT results for M22556141


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
TF factor-bounds graph:
this exponent TF target: 69
TF double-checked to: 67
250
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270
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Last modified: 2024-03-13T02:15:48+00:00