is 2 85393981 - 1
has 25706150 decimal digits
takes 275.040 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
Actual2670.348059.7015%----0.348059.7015%0.0000%
PrimeNet2715.598561.9718%360000170000005.91535.3841%11.513864.0193%2.0475%
GPU7227589.607164.0000%550000190000007.26313.9464%96.870365.4207%1.4207%
Difference-8-89.2592-4.2985%-550000-19000000-7.2631-3.9464%-96.5223-5.7192%-5.7192%

Known prime factors (1 factor, 64.5 bits, 0.00007548% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
85393981253273970076030300712064.457148297319735
5 × 193 × 5381 × 28559
2010-11-265381285590.08350.03100.0511

P-1 results:
No P-1 results for M85393981


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-26T00:20:00Architects Cubeda3_bu2??64.457200.042565.80.086


ECM factoring results:
No ECM results for M85393981


Lucas-Lehmer results:
No L-L results for M85393981


PRP results:
No PRP results for M85393981


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
267
2
250
260
270
280
290
2100
Last modified: 2010-11-26T00:20:16+00:00