Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #47826 |
| automorphism | Aut(G) = C215 (order 32768) · Inn(G) = C25 · Out(G) = C210 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| prime radical | C2×#540 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1046 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 28 points:
(1,2,3,4)(13,14,18,16)(15,21,23,19)(17,24,25,20)(22,26,28,27);(6,9)(7,11)(14,16)(19,21)(20,24)(26,27);(1,2)(3,4)(5,6,8,9)(7,10,11,12)(13,15)(14,19)(16,21)(17,22)(18,23)(20,26)(24,27)(25,28);(5,6)(7,10)(8,9)(11,12)(13,16,18,14)(15,21,23,19)(17,24,25,20)(22,27,28,26);(5,7)(6,10)(8,11)(9,12)(13,17,18,25)(14,20,16,24)(15,22,23,28)(19,26,21,27)Polycyclic presentation:
2^8|a^2=g,c^2=h,d^2=f,e^2=f,b^a=bf,c^a=cg,e^a=ef,c^b=ch,d^b=dfh,e^b=eh,d^c=dh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#49581, #7705508, #7705663, … |
| maximal normal subgroup of | C2×#49581, #7705508, #7705663, … |
| maximal quotient of | #560503, #560521, #561593, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 42569);