is 2 321797123 - 1
has 96870587 decimal digits
takes 4,595.665 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
Actual2811,521.869764.1975 %----1,521.869764.1975 %
Target280760.934663.7500 %2000000400000000490.44674.4141 %1,251.381365.3501 %
Difference+1+760.9351+0.4475 %-2000000-400000000-490.4467-4.4141 %+270.4884-1.1526 %

Known prime factors (1 factor, 80.6 bits, 0.00002505% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
32179712318359839803689559499867612580.6032852704156042060
22 × 5 × 967 × 147502800209
2017-04-20967147502800209760.93166,415310,818

P-1 results:
No P-1 results for M321797123


Trial Factoring results:
57585960616263646566676869707172737475767778798081
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-11-07carlos56foniz2642650.012
2012-04-02Never Odd Or EvenManual testing2652690.348
2012-04-02Never Odd Or EvenManual testing2692700.372
2012-04-19Never Odd Or EvenManual testing2702710.743
2012-04-19Never Odd Or EvenManual testing2712721.486
2012-10-12Never Odd Or EvenManual testing2722732.972
2016-12-06mikrManual testing2732745.945
2016-12-06mikrManual testing27427511.89
2016-12-06mikrManual testing27527623.78
2016-12-08mikrManual testing27627747.56
2017-04-20nranksManual testing27727895.12
2017-04-20nranksManual testing278279190.2
2017-04-20nranksManual testing279280380.5
2017-04-20nranksManual testing280281
80.603
25
20.01


ECM factoring results:
No ECM results for M321797123


Lucas-Lehmer results:
No L-L results for M321797123


PRP results:
No PRP results for M321797123


CERT results:
No CERT results for M321797123


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
281
280
279
278
277
276
275
274
273
272
271
270
269
265
this exponent TF target: 80
TF double-checked to: 67
250
260
270
280
290
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00