Finite Group Databasebeta

C2×D7239 #44394205

order28956
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD14478
direct productC2×D7239
unambiguous semidirect product(C2×C3)⋊D2413
unambiguous semidirect product(C2×C19)⋊D381
unambiguous semidirect product(C2×C127)⋊D57

Splittings

Fitting, socleC2×C3×C19×C127 ⋊ C2
derived, HallC3×C19×C127 ⋊ C22
HallC19×C127 ⋊ C2×D3
HallC3×C127 ⋊ C2×D19
SylowC127 ⋊ C2×D57
HallC3×C19 ⋊ C2×D127
SylowC19 ⋊ C2×D381
SylowC3 ⋊ C2×D2413

Subgroups

subgroupG/H
center, hypercenterC2D7239
commutator, cosocle, hypocenterC3×C19×C127C22
FrattiniC1G
Fitting, socleC2×C3×C19×C127C2
LCSG ▷ C3×C19×C127
UCSC1 ◁ C2

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 151
transitive degreeμt(G) = 14478

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

Conjugacy classes & character table

7242 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD28956
maximal normal subgroup ofD28956
maximal quotient ofDic14478, D28956

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(28956, 64);