is 2 1025978491 - 1
has 308850301 decimal digits
takes 54,754.477 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
Actual2710.466057.7465 %----0.466057.7465 %
Target2857,637.329164.7059 %600000014000000006,341.51264.5365 %13,978.841766.3070 %
Difference-14-7,636.8632-6.9594 %-6000000-1400000000-6,341.5126-4.5365 %-13,978.3757-8.5605 %

Known prime factors (1 factor, 70.5 bits, 0.00000687% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
102597849116376862099097029527292270.472798109426404
22 × 32 × 307 × 5417 × 13331
2020-06-195417133310.24620.45260.8531

P-1 results:
No P-1 results for M1025978491


Trial Factoring results:
5758596061626364656667686970717273747576777879808182838485
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2023-12-06frmkya40212680.058
2020-12-12slaursekunda-rtx20602642680.055
2020-06-19ViliamF3GPU268271
70.472
22
0.408


ECM factoring results:
No ECM results for M1025978491


Lucas-Lehmer results:
No L-L results for M1025978491


PRP results:
No PRP results for M1025978491


CERT results:
No CERT results for M1025978491


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