is 2 11145751 - 1
has 3355206 decimal digits
takes 3.771 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LA2635BF41664A469double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.665964.1791 %1200000240000001.19817.3709 %3.864066.8194 %
Target2685.347864.7059 %8000095000000.29102.8748 %5.638865.7205 %
Difference-1-2.6818-0.5268 %+1120000+14500000+0.9071+4.4961%-1.7747+1.0989 %

Known prime factors (1 factor, 79.8 bits, 0.00071608% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1114575110615867172420579986519932579.81247622933494658996
22 × 3 × 17 × 277 × 688411 × 1224217
2014-05-16688411122421713,2100.35200.6873

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2004-03-26ANONYMOUSv4_computers60000660000--0.0452.087%
2014-05-16HBendtzMINIHAL90081200000240000001222579.8121.1986.753%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08KA9DGXv4_computers212640.176
2013-11-27lycornManual testing2642650.335


ECM factoring results:
No ECM results for M11145751


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-06-23ANONYMOUSv4_computersA2635BF41664A4693.771
2004-04-09ANONYMOUSv4_computersA2635BF41664A4693.771


PRP results:
dateuseridcompidcofactorsres64
2021-05-24ZacHFX5950X
1061586717242057998651993
0F29DC558DB154C1


CERT results:
dateuseridcompid
2021-05-24paulrectorHome


P-1 factor-bounds graph:
B1 = 1200000, B2 = 24000000 (P-1 stage 2)
B1 = 1200000 (P-1 stage 1)
B1 = 60000, B2 = 660000 (P-1 stage 2)
B1 = 60000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
TF factor-bounds graph:
265
264
this exponent TF target: 68
TF double-checked to: 67
250
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280
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Last modified: 2024-03-13T02:15:48+00:00