is 2 9753383 - 1
has 2936061 decimal digits
takes 2.845 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L5812119C5041C6E6double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2673.046564.1791 %550008662500.04202.4448 %3.088565.0549 %
Target2686.111264.7059 %6500075000000.19882.5578 %6.310065.6086 %
Difference-1-3.0647-0.5268 %-10000-6633750-0.1569-0.1130 %-3.2215-0.5538 %

Known prime factors (1 factor, 72.4 bits, 0.00074264% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
975338363712348161082475442732272.432326616662962392
23 × 3 × 112 × 55901 × 2011973
2013-02-26559012011973142.880.06870.0866

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-06-29Carsten Kossendeymother550008662506--0.0422.156%
2013-02-26NesowaOutback2272.4320.0990.000%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-01-12ANONYMOUSv4_computers212640.201


ECM factoring results:
No ECM results for M9753383


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-04-19Jim Hulseyv4_computers5812119C5041C6E62.845
2003-07-13ANONYMOUSv4_computers5812119C5041C6E62.845


PRP results:
dateuseridcompidcofactorsres64
2019-10-27mnd9221Rb
6371234816108247544273
47921FA79E9AF273
2020-12-29Oliver KruseThreadripper-PC
6371234816108247544273
47921FA79E9AF273


CERT results:
dateuseridcompid
2020-12-29Ben Deloi-0fd7edbc828741a51


P-1 factor-bounds graph:
B1 = 55000, B2 = 866250 (P-1 stage 2)
B1 = 55000 (P-1 stage 1)
103
104
105
103
104
105
106
107
TF factor-bounds graph:
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