Finite Group Databasebeta
Cayley diagram

C2×D125 #92518

order500
isoclinismisoclinic class of D125
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD250
direct productC2×D125
unambiguous semidirect productC125⋊C22
unambiguous semidirect product(C2×C125)⋊C2

Splittings

FittingC2×C125 ⋊ C2
derived, SylowC125 ⋊ C22

Subgroups

subgroupG/H
center, hypercenterC2D125
commutator, cosocle, hypocenterC125C22
FrattiniC25C2×D5
FittingC2×C125C2
socleC2×C5D25
LCSG ▷ C125
UCSC1 ◁ C2

20 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 127
transitive degreeμt(G) = 250

A minimal faithful permutation representation — 2 generators on 127 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);(4,127)(5,126)(6,125)(7,124)(8,123)(9,122)(10,121)(11,120)(12,119)(13,118)(14,117)(15,116)(16,115)(17,114)(18,113)(19,112)(20,111)(21,110)(22,109)(23,108)(24,107)(25,106)(26,105)(27,104)(28,103)(29,102)(30,101)(31,100)(32,99)(33,98)(34,97)(35,96)(36,95)(37,94)(38,93)(39,92)(40,91)(41,90)(42,89)(43,88)(44,87)(45,86)(46,85)(47,84)(48,83)(49,82)(50,81)(51,80)(52,79)(53,78)(54,77)(55,76)(56,75)(57,74)(58,73)(59,72)(60,71)(61,70)(62,69)(63,68)(64,67)(65,66)

Conjugacy classes & character table

128 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×D125, D500, C22⋊D125, …
maximal normal subgroup ofC4×D125, D500, C22⋊D125, …
maximal quotient ofDic250, C4×D125, D500, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(500, 4);