Finite Group Databasebeta

C2×D7797 #44530035

order31188
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD15594
direct productC2×D7797
unambiguous semidirect product(C2×C3)⋊D2599
unambiguous semidirect product(C2×C23)⋊D339
unambiguous semidirect product(C2×C113)⋊D69

Splittings

Fitting, socleC2×C3×C23×C113 ⋊ C2
derived, HallC3×C23×C113 ⋊ C22
HallC23×C113 ⋊ C2×D3
HallC3×C113 ⋊ C2×D23
SylowC113 ⋊ C2×D69
HallC3×C23 ⋊ C2×D113
SylowC23 ⋊ C2×D339
SylowC3 ⋊ C2×D2599

Subgroups

subgroupG/H
center, hypercenterC2D7797
commutator, cosocle, hypocenterC3×C23×C113C22
FrattiniC1G
Fitting, socleC2×C3×C23×C113C2
LCSG ▷ C3×C23×C113
UCSC1 ◁ C2

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 141
transitive degreeμt(G) = 15594

A minimal faithful permutation representation — 2 generators on 141 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);(4,5)(7,28)(8,27)(9,26)(10,25)(11,24)(12,23)(13,22)(14,21)(15,20)(16,19)(17,18)(30,141)(31,140)(32,139)(33,138)(34,137)(35,136)(36,135)(37,134)(38,133)(39,132)(40,131)(41,130)(42,129)(43,128)(44,127)(45,126)(46,125)(47,124)(48,123)(49,122)(50,121)(51,120)(52,119)(53,118)(54,117)(55,116)(56,115)(57,114)(58,113)(59,112)(60,111)(61,110)(62,109)(63,108)(64,107)(65,106)(66,105)(67,104)(68,103)(69,102)(70,101)(71,100)(72,99)(73,98)(74,97)(75,96)(76,95)(77,94)(78,93)(79,92)(80,91)(81,90)(82,89)(83,88)(84,87)(85,86)

Conjugacy classes & character table

7800 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD31188
maximal normal subgroup ofD31188
maximal quotient ofDic15594, D31188

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(31188, 28);