Finite Group Databasebeta

#1366×D79 #34199631

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

Aliases

direct product#1366×D79

Splittings

FittingC79×#1366 ⋊ C2
SylowC79 ⋊ C2×#1366

Subgroups

subgroupG/H
centerC2#333×D79
commutatorC42×C79C22×C4
FrattiniC4×C8C22×D79
FittingC79×#1366C2
socleC2×C79C2×#333
prime radicalC22×D79#100
cosocleC4×C8×C79C23
hypercenter#1366D79
hypocenterC79C2×#1366
LCSG ▷ C42×C79 ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C4×C8 ◁ #1366

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

normal subgroups only

This group has 294 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) = 2528

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

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

Conjugacy classes & character table

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

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 80930);