Finite Group Databasebeta
Cayley diagram

C22×D4 #139

order32
nilpotency class2
isoclinismisoclinic class of D4
automorphismAut(G) = #72209832 (order 3072) · Inn(G) = C22 · Out(G) = #87588⋊C2
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C26

Aliases

direct productC22×D4
unambiguous semidirect productC4⋊C23
unambiguous semidirect productC22⋊C23

Subgroups

subgroupG/H
center, socleC23C22
commutator, Frattini, cosocleC2C24
LCSG ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ G
LECSG ▷ C2 ▷ C1

118 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 8
transitive degreeμt(G) = 16

A minimal faithful permutation representation — 4 generators on 8 points:

(3,4);(1,2)(3,4);(6,8);(5,6)(7,8)

Conjugacy classes & character table

20 conjugacy classes — view the full character table.

Relationships

derived subgroup of#13343, #13344, #13345, …
Frattini subgroup of#1390, #1393, C2×#1390, …
Fitting subgroup ofD4×A4, #5414, #5415, …
maximal subgroup of#386, #390, #392, …
maximal normal subgroup of#386, #390, #392, …
maximal quotient ofC22×C22⋊C4, C22×C4⋊C4, C2×C4×D4, …
automorphism group of#104, C2×C3×C8, C3×M16, …
outer automorphism group ofC4×D4, #124, C2×M16, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(32, 46);