is 2 168830323 - 1
has 50822992 decimal digits
takes 1,148.984 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
Actual277181.295463.6364 %10000004000000030.83604.3862 %212.131465.2314 %
Target278362.591964.1026 %1000000200000000116.85823.9993 %479.450165.5382 %
Difference-1-181.2965-0.4662 %--160000000-86.0222+0.3869%-267.3187-0.3068 %

Known prime factors (1 factor, 88.8 bits, 0.00005262% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1688303235565920717097788934445239612788.8471648377085998286260
22 × 32 × 5 × 2832 × 18269 × 6258877
2021-07-29800896258877371,2954.11236.2849

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-07-29Tucker KaoDozenal_Behemoth_Lab10000004000000022788.84730.843.999%


Trial Factoring results:
57585960616263646566676869707172737475767778
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-07-08Mr-Plonklinux-i7-9202632640.012
2011-02-20Richardsvn_022642650.022
2013-03-29RichardWEBDM-SOLR2652660.044
2015-06-04La GüiraManual testing2662680.266
2015-06-04La GüiraManual testing2682690.354
2015-06-04La GüiraManual testing2692700.708
2018-02-27Oliver KruseManual testing27027689.23
2021-05-19Tucker KaoManual testing27627790.65


ECM factoring results:
No ECM results for M168830323


Lucas-Lehmer results:
No L-L results for M168830323


PRP results:
No PRP results for M168830323


CERT results:
No CERT results for M168830323


P-1 factor-bounds graph:
B1 = 1000000, B2 = 40000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
277
276
270
269
268
266
265
264
this exponent TF target: 78
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00