Finite Group Databasebeta

#1426×D79 #34208784

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

Aliases

direct product#1426×D79

Splittings

FittingC79×#1426 ⋊ C2
SylowC79 ⋊ C2×#1426

Subgroups

subgroupG/H
centerC2#367×D79
commutatorC16×C79C22×C4
FrattiniC2×C16C22×D79
FittingC79×#1426C2
socleC2×C79C2×#367
prime radicalC22×D79SD32
cosocleC2×C16×C79C23
hypercenter#1426D79
hypocenterC79C2×#1426
LCSG ▷ C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×C8 ◁ C2×C16 ◁ #1426

190 conjugacy classes of subgroups; only the 81 normal subgroups are shown.

normal subgroups only

This group has 190 conjugacy classes of subgroups — too many to draw. Only its 81 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)(80,81,87,103,83,89,82,86,96,107,91,100,92,98,102,109,85,88,105,111,97,106,94,99,84,90,104,110,95,108,93,101);(81,86,88,99)(82,91)(83,95)(84,96)(87,102)(89,103,106,111)(90,109,107,101)(92,97)(93,105)(94,104)(98,110,108,100)

Conjugacy classes & character table

1066 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90083);