Finite Group Databasebeta

#34175222

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7184

Subgroups

subgroupG/H
centerC2×C4C79⋊#95
commutatorC2×C4×C79C4×C8
FrattiniC23×C8C2×D79
FittingC2×#336×C79C2
socleC22×C79#336
prime radicalC24×C79M16
cosocleC23×C8×C79C22
hypercenterC2×#336D79
hypocenterC79#7184
LCSG ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C23×C8 ◁ C2×#336

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

normal subgroups only

This group has 370 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) = 103
transitive degreeμt(G) = 2528

A minimal faithful permutation representation — 2 generators on 103 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)(81,84)(83,87)(85,86)(89,94,97,95)(96,101,103,102);(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)(82,86,87,84)(83,85)(88,89,91,96,93,95,100,102,92,97,99,103,90,94,98,101)

Polycyclic presentation:

2^8,79|a^2=d,b^2=e,c^2=h,d^2=g,g^2=h,b^a=bc,c^a=cf,e^a=eh,i^a=i^78,d^b=dfh

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, 56521);