Finite Group Databasebeta

D8255 #30658244

order16510
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD8255
unambiguous semidirect productC5⋊D1651
unambiguous semidirect productC13⋊D635
unambiguous semidirect productC127⋊D65

Splittings

Fitting, socle, derived, HallC5×C13×C127 ⋊ C2
HallC13×C127 ⋊ D5
HallC5×C127 ⋊ D13
SylowC127 ⋊ D65
HallC5×C13 ⋊ D127
SylowC13 ⋊ D635
SylowC5 ⋊ D1651

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC5×C13×C127C2
LCSG ▷ C5×C13×C127
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 145
transitive degreeμt(G) = 8255

A minimal faithful permutation representation — 2 generators on 145 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);(2,5)(3,4)(7,18)(8,17)(9,16)(10,15)(11,14)(12,13)(20,145)(21,144)(22,143)(23,142)(24,141)(25,140)(26,139)(27,138)(28,137)(29,136)(30,135)(31,134)(32,133)(33,132)(34,131)(35,130)(36,129)(37,128)(38,127)(39,126)(40,125)(41,124)(42,123)(43,122)(44,121)(45,120)(46,119)(47,118)(48,117)(49,116)(50,115)(51,114)(52,113)(53,112)(54,111)(55,110)(56,109)(57,108)(58,107)(59,106)(60,105)(61,104)(62,103)(63,102)(64,101)(65,100)(66,99)(67,98)(68,97)(69,96)(70,95)(71,94)(72,93)(73,92)(74,91)(75,90)(76,89)(77,88)(78,87)(79,86)(80,85)(81,84)(82,83)

Polycyclic presentation:

2,5,13,127|b^a=b^4,c^a=c^12,d^a=d^126

Conjugacy classes & character table

4129 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD65×D127, D13×D635, D5×D1651, …
maximal normal subgroup ofD65×D127, D13×D635, D5×D1651, …
maximal quotient ofDic8255, C2×D8255

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16510, 8);