Finite Group Databasebeta

#34207477

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #13388

Subgroups

subgroupG/H
centerC22#19098697
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
FittingC79×#3059C2
socleC22×C79#447
prime radicalC2×#41×C79D4
hypercenter#3059D79
hypocenterC79#13388
LCSG ▷ C22×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C22×C4 ◁ C2×#131 ◁ #3059

396 conjugacy classes of subgroups; only the 97 normal subgroups are shown.

normal subgroups only

This group has 396 conjugacy classes of subgroups — too many to draw. Only its 97 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) = 115
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 3 generators on 115 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)(80,82,83,81)(85,91)(86,95)(87,100)(88,101)(90,104)(92,93)(94,110)(96,99)(97,98)(102,111)(103,109)(105,114)(106,108)(107,112);(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)(82,83)(84,86)(85,90)(87,99)(88,95)(89,98)(91,108)(92,112)(93,106)(94,107)(96,102)(97,101)(100,115)(103,105)(104,109)(110,114)(111,113);(81,82)(84,85,89,94)(86,90,98,107)(87,91,102,110)(88,103,101,93)(92,111,109,100)(95,105,97,106)(96,114,99,108)(104,115,112,113)

Polycyclic presentation:

2^8,79|a^2=h,c^2=d,e^2=gh,f^2=h,g^2=h,b^a=bd,c^a=ce,e^a=eg,f^a=fh,g^a=gh,c^b=cf,e^b=eh,f^b=fh,e^c=eg,f^c=fh,g^c=gh,i^c=i^78

Conjugacy classes & character table

1288 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 88776);