Finite Group Databasebeta
Cayley diagram

C2×#2580 #34890

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C29

Aliases

direct productC2×#2580

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC23×D4C22
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1611 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 22 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97438, #115298, #115387, …
maximal normal subgroup of#97438, #115298, #115387, …
maximal quotient ofC2×#13925, C2×#13941, C2×#14018, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27878);