is 2 62990071 - 1
has 18961901 decimal digits
takes 147.968 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
Actual2670.471761.1940%----0.471761.1940%0.0000%
PrimeNet2703.793562.8571%260000120000003.06435.1527%6.857764.7710%1.9139%
GPU7227460.737664.8649%400000130000003.70073.7293%64.438366.1752%1.3103%
Difference-7-60.2659-3.6708%-400000-13000000-3.7007-3.7293%-63.9666-4.9811%-4.9811%

Known prime factors (1 factor, 57.3 bits, 0.00009098% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
629900711785440037266954891857.3091417239264
25 × 3 × 7 × 2108987
-3221089870.00050.39150.7310

P-1 results:
No P-1 results for M62990071


Trial Factoring results:
No TF results for M62990071


ECM factoring results:
No ECM results for M62990071


Lucas-Lehmer results:
No L-L results for M62990071


PRP results:
No PRP results for M62990071


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
TF factor-bounds graph:
267
250
260
270
280
290
2100