Finite Group Databasebeta
Cayley diagram

C81 #724

order81
nilpotency class1
isoclinismisoclinic class of C1
automorphismAut(G) = C2×C27 (order 54) · Inn(G) = C1 · Out(G) = C2×C27
holomorphG ⋊ Aut(G) = #72221799
homologyAbelianization (H1) = G · Schur multiplier (H2) = C1

Aliases

cyclicC81

Subgroups

subgroupG/H
centerGC1
commutatorC1G
Frattini, cosocleC27C3
socle, prime radicalC3C27
LCSG ▷ C1
UCSC1 ◁ G
LECSG ▷ C27 ▷ C9 ▷ C3 ▷ C1

5 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 81
transitive degreeμt(G) = 81

A minimal faithful permutation representation — 1 generator on 81 points:

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

Conjugacy classes & character table

81 conjugacy classes — view the full character table.

Relationships

center ofD3×C81, C243⋊C3, #10624833, …
derived subgroup ofD81, Dic81, C2×D81, …
Frattini subgroup ofC243, D243, C2×C243, …
Fitting subgroup ofD81
maximal subgroup ofD81, C2×C81, C243, …
maximal normal subgroup ofD81, C2×C81, C243, …
maximal quotient ofC2×C81, C243, C3×C81, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(81, 1);