is 2 4051575461 - 1
has 1219645744 decimal digits
takes 1,016,457.751 GHz-days to do one PRP test
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2751.888657.3333%----1.888657.3333%
Target292247,551.641265.2174%200000006000000000125,796.06394.2412%373,347.705166.6926%
Difference-17-247,549.7526-7.8841%-20000000-6000000000-125,796.0639-4.2412%-373,345.8165-9.3593%

Known prime factors:
No known factors for M4051575461

P-1 results:
No P-1 results for M4051575461


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2023-07-07ramgeisr4mg31s271273--0.354--
2023-07-07ramgeisr4mg31s273274--0.472--
2023-07-07ramgeisr4mg31s274275--0.944--


ECM factoring results:
No ECM results for M4051575461


Lucas-Lehmer results:
No L-L results for M4051575461


PRP results:
No PRP results for M4051575461


TF factor-bounds graph:
275
274
273
this exponent TF target: 92
250
260
270
280
290
2100
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Last modified: 2023-10-02T12:12:48+00:00