Finite Group Databasebeta

D556 #11764334

order1112
automorphismAut(G) order 153456
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD556
unambiguous semidirect productC4⋊D139

Splittings

FittingC4×C139 ⋊ C2
SylowC139 ⋊ D4

Subgroups

subgroupG/H
center, FrattiniC2C2×D139
commutator, socle, cosocleC2×C139C22
FittingC4×C139C2
hypercenterC4D139
hypocenterC139D4
LCSG ▷ C2×C139 ▷ C139
UCSC1 ◁ C2 ◁ C4

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 143
transitive degreeμt(G) = 556

A minimal faithful permutation representation — 2 generators on 143 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);(2,4)(6,143)(7,142)(8,141)(9,140)(10,139)(11,138)(12,137)(13,136)(14,135)(15,134)(16,133)(17,132)(18,131)(19,130)(20,129)(21,128)(22,127)(23,126)(24,125)(25,124)(26,123)(27,122)(28,121)(29,120)(30,119)(31,118)(32,117)(33,116)(34,115)(35,114)(36,113)(37,112)(38,111)(39,110)(40,109)(41,108)(42,107)(43,106)(44,105)(45,104)(46,103)(47,102)(48,101)(49,100)(50,99)(51,98)(52,97)(53,96)(54,95)(55,94)(56,93)(57,92)(58,91)(59,90)(60,89)(61,88)(62,87)(63,86)(64,85)(65,84)(66,83)(67,82)(68,81)(69,80)(70,79)(71,78)(72,77)(73,76)(74,75)

Polycyclic presentation:

2^3,139|b^a=bc,d^a=d^138,d^b=d^138

Conjugacy classes & character table

281 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#14555770, D1112, #14555772, …
maximal normal subgroup of#14555770, D1112, #14555772, …
maximal quotient of(C2×D139)⋊C4, C4⋊Dic139, D1112, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1112, 10);