Finite Group Databasebeta

#1425×D79 #34208778

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

Aliases

direct product#1425×D79

Splittings

FittingC79×#1425 ⋊ C2
SylowC79 ⋊ C2×#1425

Subgroups

subgroupG/H
centerC4D16×D79
commutatorC16×C79C22×C4
FrattiniC2×C16C22×D79
FittingC79×#1425C2
socleC2×C79C2×#366
prime radicalC22×D79Q32
cosocleC2×C16×C79C23
hypercenter#1425D79
hypocenterC79C2×#1425
LCSG ▷ C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C2×C4 ◁ C2×C8 ◁ C2×C16 ◁ #1425

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

normal subgroups only

This group has 182 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) = 143
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 143 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)(80,82,94,121,85,97,102,109,84,96,113,137,105,127,104,126,87,99,123,142,107,129,103,125,86,98,122,141,101,124,83,95)(81,88,100,119,91,111,132,130,108,136,134,143,135,139,115,120,92,112,133,140,116,138,114,118,90,110,131,128,106,117,89,93);(80,81,84,90,87,92,86,108)(82,93,96,118,99,120,98,130)(83,100,102,131,104,133,103,134)(85,106,105,116,107,135,101,91)(88,109,110,126,112,125,136,95)(89,113,114,123,115,122,132,94)(97,128,127,140,129,143,124,119)(111,121,117,137,138,142,139,141)

Conjugacy classes & character table

1558 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90077);