Finite Group Databasebeta

#34175734

order20224
automorphism?
homologyAbelianization (H1) = C2×C8 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7388

Subgroups

subgroupG/H
centerC4#19098364
commutatorC16×C79C2×C8
FrattiniC4×C16C2×D79
FittingC79×#2178C2
socleC2×C79#1331
prime radical#508×C79C4
cosocleC4×C16×C79C22
hypercenter#2178D79
hypocenterC79#7388
LCSG ▷ C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C2×C8 ◁ C4×C8 ◁ C4×C16 ◁ #2178

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

normal subgroups only

This group has 118 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) = 143
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 2 generators on 143 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)(81,88)(83,102)(84,97)(85,110)(86,98)(87,100)(89,117)(90,122)(91,115)(92,124)(93,116)(94,125)(95,130)(96,103)(99,111)(101,129)(104,133)(105,134)(106,139)(107,112)(108,131)(109,114)(113,123)(118,143)(119,126)(120,135)(121,127)(128,138)(132,141)(136,137)(140,142);(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)(80,81,84,90,86,91,108,118,87,93,103,123,111,92,85,109)(82,94,96,126,98,128,110,127,100,129,97,135,99,136,131,117)(83,101,104,119,106,137,130,121,107,125,141,120,142,138,105,89)(88,112,113,133,115,140,114,95,116,102,122,132,124,139,143,134)

Polycyclic presentation:

2^8,79|a^2=d,c^2=egh,d^2=f,e^2=gh,f^2=h,g^2=h,b^a=bc,c^a=ce,e^a=eg,g^a=gh,i^a=i^78,c^b=ceh,d^b=dh,e^b=eg,g^b=gh

Conjugacy classes & character table

1768 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 57033);