is 2 13240553 - 1
has 3985804 decimal digits
takes 5.408 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-
PRP5A07FD12F27252ABPRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.244264.1791 %3000002101291506.94878.8856 %9.192967.3620 %
Target2684.501764.7059 %90000120000000.43763.1774 %4.939365.8273 %
Difference-1-2.2575-0.5268 %+210000+198129150+6.5111+5.7082%+4.2536+1.5347 %

Known prime factors (1 factor, 53.0 bits, 0.00039996% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1324055387457111859526491652.957330262308
22 × 32 × 9173953
-991739536.108e-50.29600.5529

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-06-14nordisweet16_30.8b14300000300000--0.1781.920%
2022-06-20nordisweet16_30.8b14300000210129150
skipped known factor: 8745711185952649
--8.5328.131%


Trial Factoring results:
575859606162636465666768
No TF results for M13240553


ECM factoring results:
No ECM results for M13240553


Lucas-Lehmer results:
No L-L results for M13240553


PRP results:
dateuseridcompidcofactorsres64
2022-06-25Perigbriosca
8745711185952649
5A07FD12F27252AB


CERT results:
dateuseridcompid
2022-06-25mikeblasbarney


P-1 factor-bounds graph:
B1 = 300000, B2 = 210129150 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
this exponent TF target: 68
TF double-checked to: 67
250
260
270
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00