D₁₀₇₂₁ #36339656

order	21442
automorphism	?
homology	Abelianization (H₁) = C₂ · Schur multiplier (H₂) = C₁

Aliases

dihedral	D₁₀₇₂₁
unambiguous semidirect product	C₇₁⋊D₁₅₁
unambiguous semidirect product	C₁₅₁⋊D₇₁

Splittings

Fitting, socle, derived, Hall	C₇₁×C₁₅₁ ⋊ C₂
Sylow	C₁₅₁ ⋊ D₇₁
Sylow	C₇₁ ⋊ D₁₅₁

Subgroups

	subgroup	G/H
center, Frattini, hypercenter	C₁	G
commutator, Fitting, socle, cosocle, hypocenter	C₇₁×C₁₅₁	C₂
LCS	G ▷ C₇₁×C₁₅₁
UCS	C₁

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 222
transitive degree	μ_t(G) = 10721

A minimal faithful permutation representation — 2 generators on 222 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);(2,71)(3,70)(4,69)(5,68)(6,67)(7,66)(8,65)(9,64)(10,63)(11,62)(12,61)(13,60)(14,59)(15,58)(16,57)(17,56)(18,55)(19,54)(20,53)(21,52)(22,51)(23,50)(24,49)(25,48)(26,47)(27,46)(28,45)(29,44)(30,43)(31,42)(32,41)(33,40)(34,39)(35,38)(36,37)(73,222)(74,221)(75,220)(76,219)(77,218)(78,217)(79,216)(80,215)(81,214)(82,213)(83,212)(84,211)(85,210)(86,209)(87,208)(88,207)(89,206)(90,205)(91,204)(92,203)(93,202)(94,201)(95,200)(96,199)(97,198)(98,197)(99,196)(100,195)(101,194)(102,193)(103,192)(104,191)(105,190)(106,189)(107,188)(108,187)(109,186)(110,185)(111,184)(112,183)(113,182)(114,181)(115,180)(116,179)(117,178)(118,177)(119,176)(120,175)(121,174)(122,173)(123,172)(124,171)(125,170)(126,169)(127,168)(128,167)(129,166)(130,165)(131,164)(132,163)(133,162)(134,161)(135,160)(136,159)(137,158)(138,157)(139,156)(140,155)(141,154)(142,153)(143,152)(144,151)(145,150)(146,149)(147,148)

Polycyclic presentation:

2,71,151|b^a=b^70,c^a=c^150

Conjugacy classes & character table

5362 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(21442, 3);

D10721 #36339656