D₁₂₂₄₅ #37587545

order	24490
automorphism	?
homology	Abelianization (H₁) = C₂ · Schur multiplier (H₂) = C₁

Aliases

dihedral	D₁₂₂₄₅
unambiguous semidirect product	C₅⋊D₂₄₄₉
unambiguous semidirect product	C₃₁⋊D₃₉₅
unambiguous semidirect product	C₇₉⋊D₁₅₅

Splittings

Fitting, socle, derived, Hall	C₅×C₃₁×C₇₉ ⋊ C₂
Hall	C₃₁×C₇₉ ⋊ D₅
Hall	C₅×C₇₉ ⋊ D₃₁
Hall	C₅×C₃₁ ⋊ D₇₉
Sylow	C₇₉ ⋊ D₁₅₅
Sylow	C₃₁ ⋊ D₃₉₅
Sylow	C₅ ⋊ D₂₄₄₉

Subgroups

	subgroup	G/H
center, Frattini, hypercenter	C₁	G
commutator, Fitting, socle, cosocle, hypocenter	C₅×C₃₁×C₇₉	C₂
LCS	G ▷ C₅×C₃₁×C₇₉
UCS	C₁

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 115
transitive degree	μ_t(G) = 12245

A minimal faithful permutation representation — 2 generators on 115 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);(2,5)(3,4)(7,36)(8,35)(9,34)(10,33)(11,32)(12,31)(13,30)(14,29)(15,28)(16,27)(17,26)(18,25)(19,24)(20,23)(21,22)(38,115)(39,114)(40,113)(41,112)(42,111)(43,110)(44,109)(45,108)(46,107)(47,106)(48,105)(49,104)(50,103)(51,102)(52,101)(53,100)(54,99)(55,98)(56,97)(57,96)(58,95)(59,94)(60,93)(61,92)(62,91)(63,90)(64,89)(65,88)(66,87)(67,86)(68,85)(69,84)(70,83)(71,82)(72,81)(73,80)(74,79)(75,78)(76,77)

Polycyclic presentation:

2,5,31,79|b^a=b^4,c^a=c^30,d^a=d^78

Conjugacy classes & character table

6124 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(24490, 9);

D12245 #37587545