Finite Group Databasebeta

#34197611

order20224
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C2×C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11495

Subgroups

subgroupG/H
centerC2×C4C2×(C2×D79)⋊C4
commutator, prime radicalC23×C79C22×C8
FrattiniC22×C8C22×D79
FittingC79×#2162C2
socleC22×C79C2×C22⋊C8
cosocleC22×C8×C79C23
hypercenter#2162D79
hypocenterC79#11495
LCSG ▷ C23×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C2×C4×C8 ◁ #2162

314 conjugacy classes of subgroups; only the 111 normal subgroups are shown.

normal subgroups only

This group has 314 conjugacy classes of subgroups — too many to draw. Only its 111 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) = 10112

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

(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)(80,83,84,91)(81,86,87,93)(82,89,90,95)(85,92,88,94)(96,99,98,108,101,109,102,100)(97,104,107,111,105,110,103,106);(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)(80,82,84,90)(81,85,87,88)(83,89,91,95)(86,92,93,94)(96,98,101,102)(97,103,105,107)(99,100,109,108)(104,111,110,106);(80,81)(82,88,90,85)(83,86)(84,87)(89,94,95,92)(91,93)(96,97,100,106,102,103,109,110,101,105,108,111,98,107,99,104)

Polycyclic presentation:

2^8,79|a^2=e,b^2=f,c^2=fg,e^2=g,g^2=h,b^a=bd,d^a=df,c^b=ch,e^b=ef,i^b=i^78

Conjugacy classes & character table

3184 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 78910);