Finite Group Databasebeta

#34175672

order20224
automorphism?
homologyAbelianization (H1) = C2×C16 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7364

Subgroups

subgroupG/H
centerC8#14579076
commutatorC2×C4×C79C2×C16
FrattiniC2×M32C2×D79
FittingC79×#2150C2
socleC2×C79#1322
prime radicalC23×C79M32
cosocleC2×M32×C79C22
hypercenter#2150D79
hypocenterC79#7364
LCSG ▷ C2×C4×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C8 ◁ C2×C8 ◁ C2×M32 ◁ #2150

126 conjugacy classes of subgroups; only the 51 normal subgroups are shown.

normal subgroups only

This group has 126 conjugacy classes of subgroups — too many to draw. Only its 51 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 — 2 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)(81,87,90,88)(83,94)(89,99,103,101)(91,100,105,102)(92,95)(96,107)(104,109,111,110)(106,108);(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)(80,81,83,89,84,91,96,104,85,88,95,101,97,102,108,110,86,90,94,103,98,105,107,111,82,87,92,99,93,100,106,109)

Polycyclic presentation:

2^8,79|a^2=d,b^2=e,c^2=h,d^2=f,f^2=g,g^2=h,b^a=bc,c^a=ce,e^a=eh,i^a=i^78,d^b=deh,d^c=dh

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, 56971);