order	238
isoclinism	isoclinic class of D₇
automorphism	Aut(G) = C₁₆×AGL(1,𝔽₇) (order 672) · Inn(G) = D₇ · Out(G) = C₃×C₁₆
homology	Abelianization (H₁) = C₂×C₁₇ · Schur multiplier (H₂) = C₁

Aliases

direct product	D₇×C₁₇
unambiguous semidirect product	C₇⋊(C₂×C₁₇)

Splittings

Fitting, socle, Hall	C₇×C₁₇ ⋊ C₂
derived, Sylow	C₇ ⋊ C₂×C₁₇

	subgroup	G/H
center, hypercenter	C₁₇	D₇
commutator, cosocle, hypocenter	C₇	C₂×C₁₇
Frattini	C₁	G
Fitting, socle	C₇×C₁₇	C₂
LCS	G ▷ C₇
UCS	C₁ ◁ C₁₇

8 conjugacy classes of subgroups.

minimal degree	μ(G) = 24
transitive degree	μ_t(G) = 119

A minimal faithful permutation representation — 2 generators on 24 points:

(2,3)(4,5)(6,7)(8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24);(1,2,4,6,7,5,3)

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(238, 1);