is 2 13518983 - 1
has 4069620 decimal digits
takes 5.998 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 PRP tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP2133136A421E7CEBPRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.197964.1791 %3000002101291507.54778.9056 %9.745667.3692 %
Target2698.831065.2174 %90000110000000.44032.7830 %9.271466.1854 %
Difference-2-6.6331-1.0383 %+210000+199129150+7.1074+6.1226%+0.4743+1.1838 %

Known prime factors (2 factors, 140.1 bits, 0.00103604% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
13518983218400100926620127112064.244807753441685
5 × 31 × 5211312527
2000-06-113152113125270.3437182.66341.16
13518983666474734352300006416172375.8192464958844730776
23 × 3 × 37 × 2341 × 3319 × 357263
2022-07-2433193572631,048.20.01450.0234

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-07-09nordisweet16_30.8b14300000300000--0.2081.705%
2022-07-24nordisweet16_30.8b1430000021012915022375.8198.5327.444%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-06-11oerwinv4_computers??
64.244
20


ECM factoring results:
No ECM results for M13518983


Lucas-Lehmer results:
No L-L results for M13518983


PRP results:
dateuseridcompidcofactorsres64
2022-08-16XZT7050Micro5
21840010092662012711
66647473435230000641617
2133136A421E7CEB


CERT results:
dateuseridcompid
2022-08-16Chad SteenersonLulabelle14


P-1 factor-bounds graph:
B1 = 300000, B2 = 210129150 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
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1010
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