Finite Group Databasebeta

D8955 #31822261

order17910
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD8955
unambiguous semidirect productC5⋊D1791
unambiguous semidirect productC9⋊D995
unambiguous semidirect productC199⋊D45

Splittings

Fitting, derived, HallC5×C9×C199 ⋊ C2
HallC9×C199 ⋊ D5
HallC5×C199 ⋊ D9
SylowC199 ⋊ D45
HallC5×C9 ⋊ D199
SylowC9 ⋊ D995
SylowC5 ⋊ D1791

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC5×C9×C199C2
FrattiniC3D2985
socleC3×C5×C199D3
LCSG ▷ C5×C9×C199
UCSC1

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 213
transitive degreeμt(G) = 8955

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

Polycyclic presentation:

2,3,5,199,3|b^3=e^2,b^a=b^2e,c^a=c^4,d^a=d^198,e^a=e^2

Conjugacy classes & character table

4479 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD45×D199, D5×D1791, D9×D995, …
maximal normal subgroup ofD45×D199, D5×D1791, D9×D995, …
maximal quotient ofDic8955, C2×D8955, D26865

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17910, 9);