Finite Group Databasebeta

D844 #13133015

order1688
automorphismAut(G) order 354480
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD844
unambiguous semidirect productC4⋊D211

Splittings

FittingC4×C211 ⋊ C2
SylowC211 ⋊ D4

Subgroups

subgroupG/H
center, FrattiniC2C2×D211
commutator, socle, cosocleC2×C211C22
FittingC4×C211C2
hypercenterC4D211
hypocenterC211D4
LCSG ▷ C2×C211 ▷ C211
UCSC1 ◁ C2 ◁ C4

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 215
transitive degreeμt(G) = 844

A minimal faithful permutation representation — 2 generators on 215 points:

(1,2,3,4)(5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215);(2,4)(6,215)(7,214)(8,213)(9,212)(10,211)(11,210)(12,209)(13,208)(14,207)(15,206)(16,205)(17,204)(18,203)(19,202)(20,201)(21,200)(22,199)(23,198)(24,197)(25,196)(26,195)(27,194)(28,193)(29,192)(30,191)(31,190)(32,189)(33,188)(34,187)(35,186)(36,185)(37,184)(38,183)(39,182)(40,181)(41,180)(42,179)(43,178)(44,177)(45,176)(46,175)(47,174)(48,173)(49,172)(50,171)(51,170)(52,169)(53,168)(54,167)(55,166)(56,165)(57,164)(58,163)(59,162)(60,161)(61,160)(62,159)(63,158)(64,157)(65,156)(66,155)(67,154)(68,153)(69,152)(70,151)(71,150)(72,149)(73,148)(74,147)(75,146)(76,145)(77,144)(78,143)(79,142)(80,141)(81,140)(82,139)(83,138)(84,137)(85,136)(86,135)(87,134)(88,133)(89,132)(90,131)(91,130)(92,129)(93,128)(94,127)(95,126)(96,125)(97,124)(98,123)(99,122)(100,121)(101,120)(102,119)(103,118)(104,117)(105,116)(106,115)(107,114)(108,113)(109,112)(110,111)

Polycyclic presentation:

2^3,211|b^a=bc,d^a=d^210,d^b=d^210

Conjugacy classes & character table

425 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#16809947, D1688, #16809949, …
maximal normal subgroup of#16809947, D1688, #16809949, …
maximal quotient of(C2×D211)⋊C4, C4⋊Dic211, D1688, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1688, 10);