Finite Group Databasebeta

#34186750

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #9585

Subgroups

subgroupG/H
centerC2×C4#14579135
commutatorC42×C79C22×C4
FrattiniC2×C42C22×D79
FittingC79×#1450C2
socleC22×C79#388
prime radicalC23×C79#126
cosocleC2×C42×C79C23
hypercenter#1450D79
hypocenterC79#9585
LCSG ▷ C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C2×C42 ◁ #1450

290 conjugacy classes of subgroups; only the 91 normal subgroups are shown.

normal subgroups only

This group has 290 conjugacy classes of subgroups — too many to draw. Only its 91 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)(80,82,83,91,85,93,84,92)(81,87,88,90,89,95,86,94)(96,98,99,105,100,104,106,111)(97,102,101,107,103,110,108,109);(81,86,89,88)(87,94,95,90)(96,97,99,101,100,103,106,108)(98,102,105,107,104,110,111,109);(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)(80,81,84,88,85,89,83,86)(82,90,92,95,93,94,91,87)(97,101)(98,104)(99,106)(102,109)(103,108)(107,110)

Polycyclic presentation:

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

Conjugacy classes & character table

3178 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 68049);