Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #3532 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24×C4 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, socle, cosocle | C23 | C25 |
| commutator | C22 | C24×C4 |
| prime radical | C25 | C23 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1117 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 20 points:
(1,2,4,3)(5,6)(7,11)(8,10)(9,12)(13,14,18,19)(15,17,16,20);(5,6,8,10)(7,9,12,11)(14,19)(15,16);(1,3,4,2)(13,15,18,16)(14,20,19,17);(5,6)(7,9)(8,10)(11,12)(13,16,18,15)(14,17,19,20);(5,7)(6,9)(8,12)(10,11)(13,17)(14,15)(16,19)(18,20)Polycyclic presentation:
2^8|a^2=h,b^2=fg,c^2=h,d^2=g,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=cg,d^b=df76 conjugacy classes — view the full character table.
| maximal subgroup of | #97706, #209432, #209433, … |
| maximal normal subgroup of | #97706, #209432, #209433, … |
| maximal quotient of | #513800, #513801, #513888, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 27421);