Finite Group Databasebeta

D695 #13063487

order1390
isoclinismisoclinic class of D695
automorphismAut(G) order 383640
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD695
unambiguous semidirect productC5⋊D139
unambiguous semidirect productC139⋊D5

Splittings

Fitting, socle, derived, HallC5×C139 ⋊ C2
SylowC139 ⋊ D5
SylowC5 ⋊ D139

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC5×C139C2
LCSG ▷ C5×C139
UCSC1

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 144
transitive degreeμt(G) = 695

A minimal faithful permutation representation — 2 generators on 144 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);(2,5)(3,4)(7,144)(8,143)(9,142)(10,141)(11,140)(12,139)(13,138)(14,137)(15,136)(16,135)(17,134)(18,133)(19,132)(20,131)(21,130)(22,129)(23,128)(24,127)(25,126)(26,125)(27,124)(28,123)(29,122)(30,121)(31,120)(32,119)(33,118)(34,117)(35,116)(36,115)(37,114)(38,113)(39,112)(40,111)(41,110)(42,109)(43,108)(44,107)(45,106)(46,105)(47,104)(48,103)(49,102)(50,101)(51,100)(52,99)(53,98)(54,97)(55,96)(56,95)(57,94)(58,93)(59,92)(60,91)(61,90)(62,89)(63,88)(64,87)(65,86)(66,85)(67,84)(68,83)(69,82)(70,81)(71,80)(72,79)(73,78)(74,77)(75,76)

Polycyclic presentation:

2,5,139|b^a=b^4,c^a=c^138

Conjugacy classes & character table

349 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD5×D139, C2×D695, C3×D695, …
maximal normal subgroup ofD5×D139, C2×D695, C3×D695, …
maximal quotient ofDic695, C2×D695, C3×D695, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1390, 3);