Finite Group Databasebeta
Cayley diagram

C22×C7×C9 #6976

order252
nilpotency class1
isoclinismisoclinic class of C1
automorphismAut(G) = C22×C32×D3 (order 216) · Inn(G) = C1 · Out(G) = C22×C32×D3
homologyAbelianization (H1) = G · Schur multiplier (H2) = C2

Aliases

abelianC22×C7×C9
multiplicative(ℤ/381)ˣ, (ℤ/508)ˣ, (ℤ/762)ˣ

Subgroups

subgroupG/H
centerGC1
commutatorC1G
Frattini, cosocleC3C22×C3×C7
socle, prime radicalC22×C3×C7C3
LCSG ▷ C1
UCSC1 ◁ G

30 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 252

A minimal faithful permutation representation — 2 generators on 20 points:

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

Conjugacy classes & character table

252 conjugacy classes — view the full character table.

Relationships

center ofC7×C9×C22⋊C4, C7×C9×C4⋊C4, C2×C7×D4×C9, …
derived subgroup ofA4×D63, (C9⋊A4)⋊D7, D9×C22⋊ΓL(1,𝔽8), …
Fitting subgroup ofC2×C9×Dic7, C9×C22⋊D7, C2×C7×Dic9, …
maximal subgroup ofC2×C9×Dic7, C9×C22⋊D7, C2×C7×Dic9, …
maximal normal subgroup ofC2×C9×Dic7, C9×C22⋊D7, C2×C7×Dic9, …
maximal quotient ofC2×C4×C7×C9, C7×D4×C9, C7×Q8×C9, …
automorphism group ofC3×C127, C4×C127, C2×C3×C127
outer automorphism group ofC3×C127, C4×C127, C2×C3×C127

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(252, 15);