Finite Group Databasebeta

C2×D905 #16813744

order3620
automorphismAut(G) order 1303200
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD1810
direct productC2×D905
unambiguous semidirect product(C2×C5)⋊D181
unambiguous semidirect product(C2×C181)⋊D5

Splittings

Fitting, socleC2×C5×C181 ⋊ C2
derived, HallC5×C181 ⋊ C22
SylowC181 ⋊ C2×D5
SylowC5 ⋊ C2×D181

Subgroups

subgroupG/H
center, hypercenterC2D905
commutator, cosocle, hypocenterC5×C181C22
FrattiniC1G
Fitting, socleC2×C5×C181C2
LCSG ▷ C5×C181
UCSC1 ◁ C2

20 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 188
transitive degreeμt(G) = 1810

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

Conjugacy classes & character table

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

Relationships

maximal subgroup ofC2×C5⋊(D181⋊C3), D3×D905, C2×D2715, …
maximal normal subgroup ofC2×C5⋊(D181⋊C3), C2×C3×D905, C2×C5⋊(D181⋊C5), …
maximal quotient ofD3×D905, C2×D2715, C2×C3×D905, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(3620, 20);