is 2 1026308831 - 1
has 308949743 decimal digits
takes 54,772.107 GHz-days to do one PRP test
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
Actual2710.465857.7465 %----0.465857.7465 %
Target2857,634.870964.7059 %600000014000000006,341.51264.5367 %13,976.383566.3071 %
Difference-14-7,634.4051-6.9594 %-6000000-1400000000-6,341.5126-4.5367 %-13,975.9176-8.5606 %

Known prime factors (1 factor, 68.1 bits, 0.00000663% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10263088313069200766200320911372168.056149526179328
29 × 3 × 19 × 181 × 28307
2020-06-22512283070.09800.15680.2229

P-1 results:
No P-1 results for M1026308831


Trial Factoring results:
5758596061626364656667686970717273747576777879808182838485
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2023-12-06frmkya40212680.058
2020-12-12slaursekunda-rtx20602642680.055
2020-06-22ViliamF3GPU268271
68.056
21
0.408


ECM factoring results:
No ECM results for M1026308831


Lucas-Lehmer results:
No L-L results for M1026308831


PRP results:
No PRP results for M1026308831


CERT results:
No CERT results for M1026308831


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
TF factor-bounds graph:
271
268
this exponent TF target: 85
250
260
270
280
290
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00