C₄×#19098330 #34193472

order	20224
automorphism	?
homology	Abelianization (H₁) = C₄³ · Schur multiplier (H₂) = C₂³×C₄²

Aliases

direct product

C₄×#19098330

Splittings

Sylow

C₇₉ ⋊ C₄×#342

Subgroups

	subgroup	G/H
center	C₂²×C₄	C₂²⋊Dic₇₉
commutator	C₂²×C₇₉	C₄³
Frattini	C₂⁵	C₂²×D₇₉
Fitting	C₂×C₄×C₂²⋊C₄×C₇₉	C₂
socle	C₂³×C₇₉	C₂×C₂²⋊C₄
prime radical, cosocle	C₂⁵×C₇₉	C₂³
hypercenter	C₂×C₄×C₂²⋊C₄	D₇₉
hypocenter	C₇₉	C₄×#342
LCS	G ▷ C₂²×C₇₉ ▷ C₂×C₇₉ ▷ C₇₉
UCS	C₁ ◁ C₂²×C₄ ◁ C₂⁴×C₄ ◁ C₂×C₄×C₂²⋊C₄

1482 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 95
transitive degree	μ_t(G) = 5056

A minimal faithful permutation representation — 3 generators on 95 points:

(1,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,79,77,75,73,71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35,33,31,29,27,25,23,21,19,17,15,13,11,9,7,5,3)(84,85,86,87)(88,90)(89,92)(91,95)(93,94);(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)(88,89)(90,94,95,92)(91,93);(80,81,82,83)

Conjugacy classes & character table

3208 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 74771);

C4×#19098330 #34193472