Finite Group Databasebeta

← #500×C257 #30656369

Subgroups — #500×C257 #30656369

Order 16448.

98 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C4⋊Q8×C257C212yesmaximal
2#107×C257C214yesmaximal
3C4×C8×C257C211yesmaximal, characteristic
4C2×Q8×C257—22no—
5C2×C8×C257C2212yes—
6C4⋊C4×C257—22no—
7C4⋊C4×C257C2214yes—
8C42×C257C2211yescharacteristic
9Q8×C257—44no—
10C2×C4×C257—24no—
11C2×C4×C257D411yescharacteristic
12C2×C4×C257D411yescharacteristic
13C2×C4×C257C2311yescharacteristic
14C8×C257Q814yescomplemented
15C22×C257C2×D411yescharacteristic
16C4×C257—44no—
17C4×C257D812yes—
18C4×C257Q1612yes—
19C4×C257C2×Q812yes—
20C2×C257C4⋊Q811yescharacteristic
21C2×C257C2×D811yescharacteristic
22C2×C257C2×Q1611yescharacteristic
23C257#50011yescharacteristic, direct product factor, Sylow
24#500C25711yesmaximal, characteristic, direct product factor, Sylow
25C4⋊Q8C2×C25712yes—
26#107C2×C25714yes—
27C4×C8C2×C25711yescharacteristic
28C2×Q8—22no—
29C2×C8C22×C25712yes—
30C4⋊C4—22no—
31C4⋊C4C22×C25714yes—
32C42C22×C25711yescharacteristic
33Q8—44no—
34C2×C4—24no—
35C2×C4D4×C25711yescharacteristic
36C2×C4D4×C25711yescharacteristic
37C2×C4C23×C25711yescharacteristic
38C8Q8×C25714yescomplemented
39C22C2×D4×C25711yescharacteristic
40C4—44no—
41C4D8×C25712yes—
42C4Q16×C25712yes—
43C4C2×Q8×C25712yes—
44C2C4⋊Q8×C25711yescharacteristic
45C2C2×D8×C25711yescharacteristic
46C2C2×Q16×C25711yescharacteristic
subgroupG/H
center, socle, prime radicalC22×C257C2×D4
commutator, Frattini, cosocleC2×C4C23×C257
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C257 ◁ C42×C257 ◁ G

Complements

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

NH ≅ G/Ntype
14. C8×C257Q8semidirect
23. C257#500direct (N × H)
24. #500C257direct (N × H)
38. C8Q8×C257semidirect

Maximal subgroups

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

subgroupindex
C4⋊Q8×C2572
#107×C2572
C4×C8×C2572
#500257