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C₂×#6390 #89875

order	448
isoclinism	isoclinic class of #1132
automorphism	?
homology	Abelianization (H₁) = C₂²×C₄ · Schur multiplier (H₂) = C₂³

Aliases

Splittings

C₇ ⋊ C₂×#103

Subgroups

	subgroup	G/H
center	C₂³	D₂₈
commutator	C₄×C₇	C₂²×C₄
Frattini	C₂×C₄	C₂²×D₇
Fitting	C₂²×C₇×C₈	C₂
socle, prime radical	C₂³×C₇	D₄
cosocle	C₂×C₄×C₇	C₂³
hypercenter	C₂²×C₈	D₇
hypocenter	C₇	C₂×#103
LCS	G ▷ C₄×C₇ ▷ C₂×C₇ ▷ C₇
UCS	C₁ ◁ C₂³ ◁ C₂²×C₄ ◁ C₂²×C₈

162 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 21
transitive degree	μ_t(G) = 448

A minimal faithful permutation representation — 3 generators on 21 points:

(4,6)(7,8,10,12,13,11,9)(14,15,16,18,17,19,20,21);(3,4,5,6)(8,9)(10,11)(12,13)(15,18)(16,20)(19,21);(1,2)

Conjugacy classes & character table

124 conjugacy classes — view the full character table.

Relationships

maximal subgroup of	#11726381, #11726382, #11726384, …
maximal normal subgroup of	#11726381, #11726382, #11726384, …
maximal quotient of	C₂×#89251, #11727492, C₄×#6390, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(448, 637);