Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #20158 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | D42 |
| commutator, Frattini, cosocle | C42 | C24 |
| prime radical | C2×D4 | C2×D4 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
278 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2,6,4)(3,9,10,16)(5,13,15,8)(7,14,12,11)(17,18)(19,26)(20,24)(21,29)(22,25)(23,28)(27,32)(30,31);(1,3,6,10)(2,7,4,12)(5,14,15,11)(8,16,13,9)(19,27)(23,31)(26,32)(28,30);(3,10)(7,12)(9,16)(11,14)(17,19)(18,23)(20,28)(21,30)(22,27)(24,32)(25,31)(26,29);(1,4,6,2)(3,9,10,16)(5,8,15,13)(7,14,12,11)(17,20,22,21)(18,24,25,29)(19,28,27,30)(23,32,31,26)Polycyclic presentation:
2^8|a^2=g,b^2=g,d^2=gh,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,c^b=cgh,d^b=de,e^b=eg,f^c=fh,e^d=eg34 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#20233, #6359592, #6359653, … |
| maximal normal subgroup of | C2×#20233, #6359592, #6359653, … |
| maximal quotient of | #220897, #221014, #222419, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13221);