Finite Group Databasebeta

D8493 #30684190

order16986
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD8493
unambiguous semidirect productC3⋊D2831
unambiguous semidirect productC19⋊D447
unambiguous semidirect productC149⋊D57

Splittings

Fitting, socle, derived, HallC3×C19×C149 ⋊ C2
HallC19×C149 ⋊ D3
HallC3×C149 ⋊ D19
SylowC149 ⋊ D57
HallC3×C19 ⋊ D149
SylowC19 ⋊ D447
SylowC3 ⋊ D2831

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C19×C149C2
LCSG ▷ C3×C19×C149
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 171
transitive degreeμt(G) = 8493

A minimal faithful permutation representation — 2 generators on 171 points:

(1,2,3)(4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22)(23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171);(2,3)(5,22)(6,21)(7,20)(8,19)(9,18)(10,17)(11,16)(12,15)(13,14)(24,171)(25,170)(26,169)(27,168)(28,167)(29,166)(30,165)(31,164)(32,163)(33,162)(34,161)(35,160)(36,159)(37,158)(38,157)(39,156)(40,155)(41,154)(42,153)(43,152)(44,151)(45,150)(46,149)(47,148)(48,147)(49,146)(50,145)(51,144)(52,143)(53,142)(54,141)(55,140)(56,139)(57,138)(58,137)(59,136)(60,135)(61,134)(62,133)(63,132)(64,131)(65,130)(66,129)(67,128)(68,127)(69,126)(70,125)(71,124)(72,123)(73,122)(74,121)(75,120)(76,119)(77,118)(78,117)(79,116)(80,115)(81,114)(82,113)(83,112)(84,111)(85,110)(86,109)(87,108)(88,107)(89,106)(90,105)(91,104)(92,103)(93,102)(94,101)(95,100)(96,99)(97,98)

Polycyclic presentation:

2,3,19,149|b^a=b^2,c^a=c^18,d^a=d^148

Conjugacy classes & character table

4248 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD57×D149, D19×D447, D3×D2831, …
maximal normal subgroup ofD57×D149, D19×D447, D3×D2831, …
maximal quotient ofDic8493, C2×D8493, D25479

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16986, 9);