Finite Group Databasebeta

C2×D3945 #30628876

order15780
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD7890
direct productC2×D3945
unambiguous semidirect product(C2×C3)⋊D1315
unambiguous semidirect product(C2×C5)⋊D789
unambiguous semidirect product(C2×C263)⋊D15

Splittings

Fitting, socleC2×C3×C5×C263 ⋊ C2
derived, HallC3×C5×C263 ⋊ C22
HallC5×C263 ⋊ C2×D3
HallC3×C263 ⋊ C2×D5
SylowC263 ⋊ C2×D15
HallC3×C5 ⋊ C2×D263
SylowC5 ⋊ C2×D789
SylowC3 ⋊ C2×D1315

Subgroups

subgroupG/H
center, hypercenterC2D3945
commutator, cosocle, hypocenterC3×C5×C263C22
FrattiniC1G
Fitting, socleC2×C3×C5×C263C2
LCSG ▷ C3×C5×C263
UCSC1 ◁ C2

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 273
transitive degreeμt(G) = 7890

A minimal faithful permutation representation — 2 generators on 273 points:

(1,2)(3,4,5)(6,7,8,9,10)(11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273);(4,5)(7,10)(8,9)(12,273)(13,272)(14,271)(15,270)(16,269)(17,268)(18,267)(19,266)(20,265)(21,264)(22,263)(23,262)(24,261)(25,260)(26,259)(27,258)(28,257)(29,256)(30,255)(31,254)(32,253)(33,252)(34,251)(35,250)(36,249)(37,248)(38,247)(39,246)(40,245)(41,244)(42,243)(43,242)(44,241)(45,240)(46,239)(47,238)(48,237)(49,236)(50,235)(51,234)(52,233)(53,232)(54,231)(55,230)(56,229)(57,228)(58,227)(59,226)(60,225)(61,224)(62,223)(63,222)(64,221)(65,220)(66,219)(67,218)(68,217)(69,216)(70,215)(71,214)(72,213)(73,212)(74,211)(75,210)(76,209)(77,208)(78,207)(79,206)(80,205)(81,204)(82,203)(83,202)(84,201)(85,200)(86,199)(87,198)(88,197)(89,196)(90,195)(91,194)(92,193)(93,192)(94,191)(95,190)(96,189)(97,188)(98,187)(99,186)(100,185)(101,184)(102,183)(103,182)(104,181)(105,180)(106,179)(107,178)(108,177)(109,176)(110,175)(111,174)(112,173)(113,172)(114,171)(115,170)(116,169)(117,168)(118,167)(119,166)(120,165)(121,164)(122,163)(123,162)(124,161)(125,160)(126,159)(127,158)(128,157)(129,156)(130,155)(131,154)(132,153)(133,152)(134,151)(135,150)(136,149)(137,148)(138,147)(139,146)(140,145)(141,144)(142,143)

Conjugacy classes & character table

3948 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD15780
maximal normal subgroup ofD15780
maximal quotient ofDic7890, D15780

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(15780, 22);