#34178680

order	20224
automorphism	?
homology	Abelianization (H₁) = C₂×C₄² · Schur multiplier (H₂) = C₂³

Aliases

No aliases for this group.

Splittings

Sylow

C₇₉ ⋊ #8126

Subgroups

	subgroup	G/H
center	C₂²	C₂×C₇₉⋊#95
commutator	C₂³×C₇₉	C₂×C₄²
Frattini	C₂×C₄²	C₂²×D₇₉
Fitting	C₇₉×#2920	C₂
socle	C₂²×C₇₉	C₂×#95
prime radical	C₂⁴×C₇₉	C₄²
cosocle	C₂×C₄²×C₇₉	C₂³
hypercenter	#2920	D₇₉
hypocenter	C₇₉	#8126
LCS	G ▷ C₂³×C₇₉ ▷ C₂²×C₇₉ ▷ C₇₉
UCS	C₁ ◁ C₂² ◁ C₂²×C₄² ◁ #2920

520 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 111
transitive degree	μ_t(G) = 5056

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

Polycyclic presentation:

2^8,79|a^2=e,b^2=f,c^2=h,e^2=gh,f^2=g,b^a=bd,c^a=cg,d^a=dg,f^a=fh,d^b=dh,e^b=eg,i^b=i^78

Conjugacy classes & character table

2236 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 59979);