Finite Group Databasebeta

← C2×C5×D21 #88313

Subgroups — C2×C5×D21 #88313

Order 420.

40 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C2×C3×C5×C7C211yesmaximal, characteristic, complemented
2C5×D21C212yesmaximal, direct product factor
3C2×C5×D7—31nomaximal, Hall
4C3×C5×C7C2211yescharacteristic, complemented, Hall
5C2×D21C511yesmaximal, characteristic, direct product factor, Hall
6C2×C5×C7D311yescharacteristic, complemented
7C5×D7—32no—
8C2×C5×D3—71nomaximal, Hall
9C2×C3×C7C2×C511yescharacteristic, complemented
10D21C2×C512yesdirect product factor
11C5×C7C2×D311yescharacteristic, complemented, Hall
12C2×C3×C5D711yescharacteristic, complemented
13C5×D3—72no—
14C2×D7—31noHall
15C3×C7C22×C511yescharacteristic, complemented, Hall
16C22×C5—211noHall
17C3×C5C2×D711yescharacteristic, complemented, Hall
18C2×C7C5×D311yescharacteristic, complemented
19D7—32no—
20C2×D3—71noHall
21C2×C5—212no—
22C2×C5D2111yescharacteristic, direct product factor
23C7C2×C5×D311yescharacteristic, complemented, Sylow
24C2×C3C5×D711yescharacteristic, complemented
25D3—72no—
26C5C2×D2111yescharacteristic, direct product factor, Sylow
27C22—211noSylow
28C3C2×C5×D711yescharacteristic, complemented, Sylow
29C2—212no—
30C2C5×D2111yescharacteristic, direct product factor
subgroupG/H
center, hypercenterC2×C5D21
commutator, cosocle, hypocenterC3×C7C22×C5
FrattiniC1G
Fitting, socleC2×C3×C5×C7C2
LCSG ▷ C3×C7
UCSC1 ◁ C2×C5

Complements

Splittings G = N ⋊ H with N normal; H ≅ G/N.

NH ≅ G/Ntype
1. C2×C3×C5×C7C2semidirect
2. C5×D21C2direct (N × H)
4. C3×C5×C7C22semidirect
5. C2×D21C5direct (N × H)
6. C2×C5×C7D3semidirect
9. C2×C3×C7C2×C5semidirect
10. D21C2×C5direct (N × H)
11. C5×C7C2×D3semidirect
12. C2×C3×C5D7semidirect
15. C3×C7C22×C5semidirect
17. C3×C5C2×D7semidirect
18. C2×C7C5×D3semidirect
22. C2×C5D21direct (N × H)
23. C7C2×C5×D3semidirect
24. C2×C3C5×D7semidirect
26. C5C2×D21direct (N × H)
28. C3C2×C5×D7semidirect
30. C2C5×D21direct (N × H)

Maximal subgroups

By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.

subgroupindex
C2×C3×C5×C72
C5×D212
C2×C5×D73
C2×D215
C2×C5×D37