is 2 14404757 - 1
has 4336264 decimal digits
takes 6.898 GHz-days to do one PRP test
Last-known PrimeNet details:
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
Actual2698.288065.2174 %3000002147909408.32307.5197 %16.611067.8329 %
Target2698.288065.2174 %100000120000000.51962.9227 %8.807766.2340 %
Difference---+200000+202790940+7.8033+4.5970%+7.8033+1.5990 %

Known prime factors (2 factors, 137.1 bits, 0.00095176% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1440475732218255696491341.551111832
23 × 7 × 1997
-819972.453e-88.080e-50.0001
14404757579085407728842308716125925772995.5482010049207108604153184
25 × 3 × 7 × 11 × 19 × 22091 × 289109 × 2240857
2023-01-242891092240857668,428,6230.27460.4086

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-11-21nordisweet16_30.8b14300000300000
skipped known factor: 3221825569649
--0.2081.722%
2023-01-24nordisweet16_30.8b1430000021479094022995.5489.907.520%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2024-03-18vshManual testing267269


ECM factoring results:
No ECM results for M14404757


Lucas-Lehmer results:
No L-L results for M14404757


PRP results:
dateuseridcompidcofactorsres64
2023-02-10LordJuliusi79700_Para
3221825569649
57908540772884230871612592577
FD1A66A82AC1674A


CERT results:
dateuseridcompid
2023-02-10Chad SteenersonLulabelle4


P-1 factor-bounds graph:
B1 = 300000, B2 = 214790940 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
100
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100
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102
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109
TF factor-bounds graph:
269
this exponent TF target: 69
TF double-checked to: 67
250
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2100
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Last modified: 2024-03-18T07:16:47+00:00