is 2 14422747 - 1
has 4341680 decimal digits
takes 6.907 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
Actual2672.060264.1791 %3000002147909408.32308.9924 %10.383267.4002 %
Target2698.277765.2174 %100000120000000.51962.9233 %8.797366.2342 %
Difference-2-6.2175-1.0383 %+200000+202790940+7.8033+6.0691%+1.5859+1.1661 %

Known prime factors (3 factors, 137.2 bits, 0.00095153% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
14422747144227471927.1045
5
-151.241e-128.457e-71.413e-6
1442274719614935931030.86968
22 × 17
2008-09-084171.006e-113.269e-65.653e-6
144227477254442891370448427921132479.26325149310638848648
23 × 7 × 47 × 53 × 8677 × 20777569
2023-01-2786772077756912,9130.79181.4681

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-11-21nordisweet16_30.8b14300000300000
skipped known factor: 144227471
skipped known factor: 1961493593
--0.2081.723%
2023-01-27nordisweet16_30.8b1430000021479094022479.2639.907.521%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-08Will EdgingtonManual testing??
30.869
10


ECM factoring results:
No ECM results for M14422747


Lucas-Lehmer results:
No L-L results for M14422747


PRP results:
dateuseridcompidcofactorsres64
2023-02-13Perigbragoid
144227471
1961493593
725444289137044842792113
12C5DE59A8186F87


CERT results:
dateuseridcompid
2023-02-13Michael Pawellekmike_prime2


P-1 factor-bounds graph:
B1 = 300000, B2 = 214790940 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 69
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00