Finite Group Databasebeta
Cayley diagram

#66109

order320
automorphism?
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Splittings

FittingC5×AGL(1,ℤ/8) ⋊ C2
SylowC5 ⋊ #577

Subgroups

subgroupG/H
centerC2C2×D4×D5
commutator, cosocleC4×C5C24
FrattiniC4C23×D5
FittingC5×AGL(1,ℤ/8)C2
socleC2×C5C22×D4
hypercenterAGL(1,ℤ/8)D5
hypocenterC5#577
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2 ◁ C2×C4 ◁ AGL(1,ℤ/8)

258 conjugacy classes of subgroups; only the 99 normal subgroups are shown.

normal subgroups only

This group has 258 conjugacy classes of subgroups — too many to draw. Only its 99 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 21
transitive degreeμt(G) = 80

A minimal faithful permutation representation — 4 generators on 21 points:

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

Polycyclic presentation:

2^6,5|d^2=f,e^2=f,b^a=bf,g^a=g^4,d^b=df,d^c=de,e^c=ef,e^d=ef

Conjugacy classes & character table

44 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10612011, #10612012, #10612019, …
maximal normal subgroup of#10612011, #10612012, #10612019, …
maximal quotient of#10610600, #10610604, #10610606, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 1447);