Finite Group Databasebeta

C2×D7107 #43249448

order28428
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD14214
direct productC2×D7107
unambiguous semidirect product(C2×C3)⋊D2369
unambiguous semidirect product(C2×C23)⋊D309
unambiguous semidirect product(C2×C103)⋊D69

Splittings

Fitting, socleC2×C3×C23×C103 ⋊ C2
derived, HallC3×C23×C103 ⋊ C22
HallC23×C103 ⋊ C2×D3
HallC3×C103 ⋊ C2×D23
SylowC103 ⋊ C2×D69
HallC3×C23 ⋊ C2×D103
SylowC23 ⋊ C2×D309
SylowC3 ⋊ C2×D2369

Subgroups

subgroupG/H
center, hypercenterC2D7107
commutator, cosocle, hypocenterC3×C23×C103C22
FrattiniC1G
Fitting, socleC2×C3×C23×C103C2
LCSG ▷ C3×C23×C103
UCSC1 ◁ C2

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 131
transitive degreeμt(G) = 14214

A minimal faithful permutation representation — 2 generators on 131 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);(4,5)(7,28)(8,27)(9,26)(10,25)(11,24)(12,23)(13,22)(14,21)(15,20)(16,19)(17,18)(30,131)(31,130)(32,129)(33,128)(34,127)(35,126)(36,125)(37,124)(38,123)(39,122)(40,121)(41,120)(42,119)(43,118)(44,117)(45,116)(46,115)(47,114)(48,113)(49,112)(50,111)(51,110)(52,109)(53,108)(54,107)(55,106)(56,105)(57,104)(58,103)(59,102)(60,101)(61,100)(62,99)(63,98)(64,97)(65,96)(66,95)(67,94)(68,93)(69,92)(70,91)(71,90)(72,89)(73,88)(74,87)(75,86)(76,85)(77,84)(78,83)(79,82)(80,81)

Conjugacy classes & character table

7110 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD28428
maximal normal subgroup ofD28428
maximal quotient ofDic14214, D28428

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(28428, 34);