Finite Group Databasebeta

#34197958

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4

Aliases

No aliases for this group.

Splittings

FittingC79×#1326 ⋊ C2
SylowC79 ⋊ #11579

Subgroups

subgroupG/H
centerC22#99×D79
commutatorC24×C79C22×C4
FrattiniC2×C22⋊C4C22×D79
FittingC79×#1326C2
socleC22×C79C2×#99
prime radicalC22×C22⋊D79C2×C4
cosocleC2×C22⋊C4×C79C23
hypercenter#1326D79
hypocenterC79#11579
LCSG ▷ C24×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23 ◁ C2×C22⋊C4 ◁ #1326

424 conjugacy classes of subgroups; only the 73 normal subgroups are shown.

normal subgroups only

This group has 424 conjugacy classes of subgroups — too many to draw. Only its 73 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) = 111
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 111 points:

(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)(96,98,100,104)(97,102,103,110)(99,105,107,111)(101,108,106,109);(1,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,79,77,75,73,71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35,33,31,29,27,25,23,21,19,17,15,13,11,9,7,5,3)(80,82)(81,85,88,95)(83,91)(84,92)(86,94,87,89)(90,93)(97,101,103,106)(98,104)(99,107)(102,109,110,108);(80,81,83,87,84,88,93,86)(82,89,91,85,92,94,90,95)(96,97)(98,102)(99,106,107,101)(100,103)(104,110)(105,109,111,108)

Polycyclic presentation:

2^8,79|a^2=e,b^2=f,c^2=gh,e^2=g,b^a=bd,d^a=df,f^a=fh,c^b=cgh,d^b=dh,e^b=ef,i^c=i^78,e^d=eh

Conjugacy classes & character table

1051 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 79257);