Finite Group DatabasebetaFinite Group Databasebeta| order | 1256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of D4 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C157 · Schur multiplier (H2) = C1 |
| direct product | Q8×C157 |
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C2×C157 | C22 |
| commutator, Frattini, cosocle | C2 | C22×C157 |
| LCS | G ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C157 ◁ G | |
12 conjugacy classes of subgroups.
| minimal degree | μ(G) = 165 |
| transitive degree | μt(G) = 1256 |
A minimal faithful permutation representation — 2 generators on 165 points:
(1,2,3,4)(5,8,7,6)(9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165);(1,5,3,7)(2,6,4,8)785 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1256, 4);