is 2 64981369 - 1
has 19561342 decimal digits
takes 157.625 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2670.457361.1940%----0.457361.1940%0.0000%
PrimeNet2703.677262.8571%280000130000003.42245.2989%7.099664.8253%1.9682%
GPU7227458.876364.8649%450000140000004.17943.8616%63.055766.2217%1.3568%
Difference-7-58.4191-3.6708%-450000-14000000-4.1794-3.8616%-62.5984-5.0276%-5.0276%

Known prime factors (1 factor, 40.5 bits, 0.00006234% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6498136915637116636171340.50812032
28 × 47
-2562563.616e-90.00090.0018

P-1 results:
No P-1 results for M64981369


Trial Factoring results:
No TF results for M64981369


ECM factoring results:
No ECM results for M64981369


Lucas-Lehmer results:
No L-L results for M64981369


PRP results:
No PRP results for M64981369


P-1 factor-bounds graph:
101
102
103
101
102
103
TF factor-bounds graph:
267
240
250
260
270
280
290
2100