Finite Group Databasebeta

D15575 #44528268

order31150
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD15575
unambiguous semidirect productC7⋊D2225
unambiguous semidirect productC25⋊D623
unambiguous semidirect productC89⋊D175

Splittings

Fitting, derived, HallC7×C25×C89 ⋊ C2
HallC25×C89 ⋊ D7
HallC7×C89 ⋊ D25
HallC7×C25 ⋊ D89
SylowC89 ⋊ D175
SylowC25 ⋊ D623
SylowC7 ⋊ D2225

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC7×C25×C89C2
FrattiniC5D3115
socleC5×C7×C89D5
LCSG ▷ C7×C25×C89
UCSC1

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 121
transitive degreeμt(G) = 15575

A minimal faithful permutation representation — 2 generators on 121 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);(2,25)(3,24)(4,23)(5,22)(6,21)(7,20)(8,19)(9,18)(10,17)(11,16)(12,15)(13,14)(27,32)(28,31)(29,30)(34,121)(35,120)(36,119)(37,118)(38,117)(39,116)(40,115)(41,114)(42,113)(43,112)(44,111)(45,110)(46,109)(47,108)(48,107)(49,106)(50,105)(51,104)(52,103)(53,102)(54,101)(55,100)(56,99)(57,98)(58,97)(59,96)(60,95)(61,94)(62,93)(63,92)(64,91)(65,90)(66,89)(67,88)(68,87)(69,86)(70,85)(71,84)(72,83)(73,82)(74,81)(75,80)(76,79)(77,78)

Polycyclic presentation:

2,5,7,89,5|b^5=e^4,b^a=b^4e,c^a=c^6,d^a=d^88,e^a=e^4

Conjugacy classes & character table

7789 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC2×D15575
maximal normal subgroup ofC2×D15575
maximal quotient ofDic15575, C2×D15575

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(31150, 8);