Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24390 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#121 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×#117 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
439 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6)(7,11)(8,10)(9,12)(13,14,18,21)(15,19,23,26)(16,25,20,17)(22,28,27,24);(1,2,3,4)(5,7,8,12)(6,9,10,11)(13,15,18,23)(14,19,21,26)(16,22,20,27)(17,24,25,28);(2,4)(13,16,17,14,18,20,25,21)(15,22,24,19,23,27,28,26);(6,10)(9,11)(15,23)(19,26)(22,27)(24,28)Polycyclic presentation:
2^8|a^2=h,b^2=egh,c^2=f,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg,d^b=dh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#28589, #6459550, #6459557, … |
| maximal normal subgroup of | C2×#28589, #6459550, #6459557, … |
| maximal quotient of | #323973, #323974, #323977, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21577);