is 2 69438503 - 1
has 20903073 decimal digits
takes 185.652 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
Actual27213.772462.5000 %----13.772462.5000 %
Target27455.097263.5135 %4500008000000018.54673.9948 %73.643964.9711 %
Difference-2-41.3248-1.0135 %-450000-80000000-18.5467-3.9948 %-59.8715-2.4711 %

Known prime factors (1 factor, 78.4 bits, 0.00011297% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
694385034122069338061590280859372478.4482968143868295656
23 × 103 × 757 × 827 × 5753821
2014-04-2282757538211,743.31.21832.2698

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2014-04-22SyntonyHellhound2478.4485.9810.000%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-09-23Jossv4_computers212528.60000e-6
2000-10-22Jossv4_computers212543.46000e-5
2001-01-08Jossv4_computers212560.000
2004-02-07ANONYMOUSv4_computers212620.004
2005-01-10ANONYMOUSv4_computers212640.028
2010-02-19uzyyaar_dragonfly2642650.054
2010-02-19ANONYMOUSjedi2652660.108
2010-02-21hypertrollDesktop2662670.215
2010-03-01hypertrollDesktop2672680.430
2010-03-08SpacecomberCompaqAthlon2682690.861
2013-05-23vats09Semp_7_642692701.722
2013-07-24rlakeManual testing27027210.33


ECM factoring results:
No ECM results for M69438503


Lucas-Lehmer results:
No L-L results for M69438503


PRP results:
No PRP results for M69438503


CERT results:
No CERT results for M69438503


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
TF factor-bounds graph:
272
270
269
268
267
266
265
264
262
256
254
252
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00