Finite Group Databasebeta

#34197571

order20224
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11483

Subgroups

subgroupG/H
centerC8#14579076
commutatorC23×C79C22×C8
FrattiniC2×M16C22×D79
FittingC79×#2929C2
socleC2×C79#1459
prime radical#525×C79C4
cosocleC2×M16×C79C23
hypercenter#2929D79
hypocenterC79#11483
LCSG ▷ C23×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C8 ◁ C2×C8 ◁ C2×#131 ◁ #2929

382 conjugacy classes of subgroups; only the 115 normal subgroups are shown.

normal subgroups only

This group has 382 conjugacy classes of subgroups — too many to draw. Only its 115 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) = 2528

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

Polycyclic presentation:

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

Conjugacy classes & character table

2236 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 78870);