Finite Group Databasebeta
Cayley diagram

C5⋊D5 #256

order50
isoclinismisoclinic class of C5⋊D5
automorphismAut(G) = AGL(2,𝔽5) (order 12000) · Inn(G) = G · Out(G) = A5⋊C4
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C5

Aliases

unambiguous semidirect productC5⋊D5

Splittings

Fitting, socle, derived, SylowC52 ⋊ C2

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC52C2
LCSG ▷ C52
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 10
transitive degreeμt(G) = 25

A minimal faithful permutation representation — 3 generators on 10 points:

(2,3)(4,5)(7,8)(9,10);(6,7,9,10,8);(1,2,4,5,3)

Polycyclic presentation:

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

Conjugacy classes & character table

14 conjugacy classes — view the full character table.

Relationships

derived subgroup ofD52⋊C2, #6057, #87835, …
maximal subgroup of#1043, #1044, D52, …
maximal normal subgroup of#1043, #1044, D52, …
maximal quotient of#1039, C2×C5⋊D5, C3×C5⋊D5, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(50, 4);