← #16796494
Subgroups — #16796494
Order 3328.
656 conjugacy classes of subgroups.
The subgroup lattice has 348 nodes — too large to display as a diagram.
Conjugacy classes of subgroups
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|
| 1 | #13131770 | C2 | 1 | 2 | yes | maximal, complemented |
| 2 | #13130468 | C2 | 1 | 2 | yes | maximal, complemented |
| 3 | #13130463 | C2 | 1 | 4 | yes | maximal, complemented |
| 4 | Q16×#1057 | C2 | 1 | 2 | yes | maximal, complemented |
| 5 | #13130394 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 6 | #13130174 | C2 | 1 | 2 | yes | maximal, complemented |
| 7 | C8×#6118 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 8 | C4×#88173 | C2 | 1 | 1 | yes | maximal, characteristic |
| 9 | C2×#88173 | C4 | 1 | 1 | yes | characteristic |
| 10 | C4×#6131 | C22 | 1 | 2 | yes | — |
| 11 | Q8×#1057 | C22 | 1 | 4 | yes | — |
| 12 | #11719076 | — | 2 | 4 | no | — |
| 13 | #11719076 | C22 | 1 | 4 | yes | — |
| 14 | #11719052 | — | 2 | 2 | no | — |
| 15 | #11719052 | C22 | 1 | 2 | yes | — |
| 16 | #11719051 | — | 2 | 2 | no | — |
| 17 | #11719051 | C22 | 1 | 1 | yes | characteristic |
| 18 | C4×#6118 | C22 | 1 | 1 | yes | characteristic |
| 19 | C4×C13×Q16 | C4 | 1 | 1 | yes | characteristic |
| 20 | Q16×Dic13 | C22 | 1 | 1 | yes | characteristic |
| 21 | C4×#6106 | C4 | 1 | 2 | yes | — |
| 22 | #11718541 | C4 | 1 | 1 | yes | characteristic |
| 23 | #11718533 | C22 | 1 | 1 | yes | characteristic |
| 24 | #11718465 | C4 | 1 | 2 | yes | — |
| 25 | #11718449 | C22 | 1 | 2 | yes | — |
| 26 | C4×D104 | C4 | 1 | 1 | yes | characteristic |
| 27 | C4×C8×D13 | C22 | 1 | 1 | yes | characteristic |
| 28 | Q8⋊#1057 | C22 | 1 | 4 | yes | — |
| 29 | #11718254 | C22 | 1 | 2 | yes | — |
| 30 | #11718254 | C22 | 1 | 2 | yes | — |
| 31 | #1057⋊C8 | C22 | 1 | 2 | yes | — |
| 32 | C8×#1057 | C22 | 1 | 2 | yes | — |
| 33 | #11718243 | C22 | 1 | 4 | yes | — |
| 34 | C2×#6131 | C2×C4 | 1 | 2 | yes | — |
| 35 | C2×#6118 | — | 2 | 1 | no | — |
| 36 | C2×#6118 | — | 2 | 2 | no | — |
| 37 | C2×#6118 | — | 2 | 4 | no | — |
| 38 | C2×C13×Q16 | C2×C4 | 1 | 1 | yes | characteristic |
| 39 | C4×Q8×C13 | C2×C4 | 1 | 2 | yes | — |
| 40 | Q8×Dic13 | C23 | 1 | 2 | yes | — |
| 41 | C2×#6106 | C2×C4 | 1 | 2 | yes | — |
| 42 | #88173 | — | 2 | 4 | no | — |
| 43 | C2×D104 | C2×C4 | 1 | 1 | yes | characteristic |
| 44 | C2×C8×D13 | C2×C4 | 1 | 1 | yes | characteristic |
| 45 | C2×C8×D13 | C2×C4 | 1 | 1 | yes | characteristic |
| 46 | #88147 | — | 2 | 2 | no | — |
| 47 | #88147 | C23 | 1 | 2 | yes | — |
| 48 | #88146 | — | 2 | 2 | no | — |
| 49 | #88146 | C2×C4 | 1 | 2 | yes | — |
| 50 | C4×D52 | — | 2 | 2 | no | — |
| 51 | C4×D52 | C2×C4 | 1 | 2 | yes | — |
| 52 | C42×D13 | — | 2 | 2 | no | — |
| 53 | C42×D13 | C23 | 1 | 1 | yes | characteristic |
| 54 | #88111 | — | 2 | 4 | no | — |
| 55 | #88111 | D4 | 1 | 2 | yes | — |
| 56 | #88110 | — | 2 | 1 | no | — |
| 57 | C4⋊#1057 | — | 2 | 4 | no | — |
| 58 | C4⋊#1057 | — | 2 | 2 | no | — |
| 59 | C4⋊#1057 | D4 | 1 | 1 | yes | characteristic |
| 60 | C4⋊#1057 | D4 | 1 | 1 | yes | characteristic |
| 61 | C4⋊#1057 | C23 | 1 | 4 | yes | — |
| 62 | C4×#1057 | — | 2 | 4 | no | — |
| 63 | C4×#1057 | C23 | 1 | 2 | yes | — |
| 64 | C4×#1057 | C23 | 1 | 2 | yes | — |
| 65 | C13×#107 | C2×C4 | 1 | 1 | yes | characteristic |
| 66 | C13×#103 | C2×C4 | 1 | 2 | yes | — |
| 67 | C4×C8×C13 | C2×C4 | 1 | 1 | yes | characteristic |
| 68 | #88075 | C2×C4 | 1 | 2 | yes | — |
| 69 | #88061 | C2×C4 | 1 | 2 | yes | — |
| 70 | #88058 | C2×C4 | 1 | 1 | yes | characteristic |
| 71 | C8×Dic13 | C23 | 1 | 1 | yes | characteristic |
| 72 | C8×Dic13 | C23 | 1 | 1 | yes | characteristic |
| 73 | #88049 | C2×C4 | 1 | 2 | yes | — |
| 74 | #88048 | C2×C4 | 1 | 2 | yes | — |
| 75 | C4×#1055 | C2×C4 | 1 | 1 | yes | characteristic |
| 76 | #18059 | — | 13 | 1 | no | maximal, Sylow |
| 77 | C2×Q8×C13 | C22×C4 | 1 | 2 | yes | — |
| 78 | #6131 | — | 2 | 4 | no | — |
| 79 | #6131 | — | 4 | 2 | no | — |
| 80 | C2×D52 | — | 2 | 2 | no | — |
| 81 | C2×D52 | C22×C4 | 1 | 2 | yes | — |
| 82 | C2×C4×D13 | — | 2 | 2 | no | — |
| 83 | C2×C4×D13 | — | 2 | 2 | no | — |
| 84 | C2×C4×D13 | — | 2 | 2 | no | — |
| 85 | C2×C4×D13 | C22×C4 | 1 | 1 | yes | characteristic |
| 86 | C2×C4×D13 | C2×D4 | 1 | 1 | yes | characteristic |
| 87 | C2×C4×D13 | #41 | 1 | 1 | yes | characteristic |
| 88 | C2×#1057 | — | 2 | 2 | no | — |
| 89 | C2×#1057 | — | 2 | 4 | no | — |
| 90 | C2×#1057 | C2×D4 | 1 | 2 | yes | — |
| 91 | C2×#1057 | C2×D4 | 1 | 2 | yes | — |
| 92 | #6118 | — | 2 | 4 | no | — |
| 93 | #6118 | — | 8 | 4 | no | — |
| 94 | #6118 | — | 8 | 2 | no | — |
| 95 | C13×Q16 | M16 | 1 | 4 | yes | complemented |
| 96 | C2×C8×C13 | C22×C4 | 1 | 1 | yes | characteristic |
| 97 | C2×C8×C13 | C22×C4 | 1 | 1 | yes | characteristic |
| 98 | C13×C4⋊C4 | — | 2 | 2 | no | — |
| 99 | C13×C4⋊C4 | C22×C4 | 1 | 2 | yes | — |
| 100 | C42×C13 | — | 2 | 2 | no | — |
| 101 | C42×C13 | C22×C4 | 1 | 1 | yes | characteristic |
| 102 | #6106 | — | 2 | 4 | no | — |
| 103 | #6103 | — | 2 | 2 | no | — |
| 104 | #6103 | — | 2 | 2 | no | — |
| 105 | #6103 | — | 2 | 2 | no | — |
| 106 | C4⋊Dic13 | — | 2 | 2 | no | — |
| 107 | C4⋊Dic13 | C22×C4 | 1 | 2 | yes | — |
| 108 | C4×Dic13 | — | 2 | 2 | no | — |
| 109 | C4×Dic13 | — | 2 | 2 | no | — |
| 110 | C4×Dic13 | C2×D4 | 1 | 1 | yes | characteristic |
| 111 | C4×Dic13 | #41 | 1 | 1 | yes | characteristic |
| 112 | C4×Dic13 | C24 | 1 | 1 | yes | characteristic |
| 113 | C2×#1055 | C22×C4 | 1 | 1 | yes | characteristic |
| 114 | C2×#1055 | C22×C4 | 1 | 1 | yes | characteristic |
| 115 | D104 | — | 2 | 2 | no | — |
| 116 | C8×D13 | — | 2 | 2 | no | — |
| 117 | C8×D13 | — | 4 | 1 | no | — |
| 118 | #2991 | — | 13 | 2 | no | — |
| 119 | C4×#135 | — | 13 | 1 | no | — |
| 120 | #1589 | — | 13 | 2 | no | — |
| 121 | #1588 | — | 13 | 4 | no | — |
| 122 | C8×Q16 | — | 13 | 2 | no | — |
| 123 | #1567 | — | 13 | 1 | no | — |
| 124 | #1489 | — | 13 | 2 | no | — |
| 125 | C8×M16 | — | 13 | 1 | no | — |
| 126 | C22×D13 | — | 2 | 2 | no | — |
| 127 | C22×D13 | C4×D4 | 1 | 1 | yes | characteristic |
| 128 | Q8×C13 | — | 2 | 2 | no | — |
| 129 | Q8×C13 | C2×M16 | 1 | 4 | yes | — |
| 130 | C2×C4×C13 | — | 2 | 2 | no | — |
| 131 | C2×C4×C13 | — | 2 | 2 | no | — |
| 132 | C2×C4×C13 | C4×D4 | 1 | 1 | yes | characteristic |
| 133 | C2×C4×C13 | C4×D4 | 1 | 1 | yes | characteristic |
| 134 | C2×C4×C13 | C23×C4 | 1 | 1 | yes | characteristic |
| 135 | C2×Dic13 | — | 2 | 2 | no | — |
| 136 | C2×Dic13 | C4×D4 | 1 | 1 | yes | characteristic |
| 137 | C2×Dic13 | C22×D4 | 1 | 1 | yes | characteristic |
| 138 | C2×Dic13 | C2×#41 | 1 | 1 | yes | characteristic |
| 139 | D52 | — | 2 | 2 | no | — |
| 140 | D52 | — | 2 | 2 | no | — |
| 141 | D52 | — | 4 | 4 | no | — |
| 142 | C4×D13 | — | 2 | 1 | no | — |
| 143 | C4×D13 | — | 2 | 1 | no | — |
| 144 | C4×D13 | — | 2 | 2 | no | — |
| 145 | C4×D13 | — | 2 | 1 | no | — |
| 146 | C4×D13 | — | 2 | 1 | no | — |
| 147 | C4×D13 | — | 4 | 4 | no | — |
| 148 | C4×D13 | — | 4 | 4 | no | — |
| 149 | C4×D13 | — | 4 | 2 | no | — |
| 150 | C4×D13 | — | 4 | 2 | no | — |
| 151 | #1057 | — | 2 | 4 | no | — |
| 152 | #1057 | — | 2 | 2 | no | — |
| 153 | #1057 | — | 2 | 2 | no | — |
| 154 | #1057 | — | 4 | 4 | no | — |
| 155 | C8×C13 | — | 2 | 1 | no | — |
| 156 | C8×C13 | C2×M16 | 1 | 2 | yes | — |
| 157 | #1055 | — | 2 | 1 | no | — |
| 158 | #1055 | — | 2 | 1 | no | — |
| 159 | C2×#135 | — | 13 | 1 | no | — |
| 160 | C4×#41 | — | 13 | 2 | no | — |
| 161 | C8×Q8 | — | 13 | 4 | no | — |
| 162 | C4×Q16 | — | 13 | 1 | no | — |
| 163 | C4×Q16 | #261 | 1 | 1 | yes | characteristic |
| 164 | C4×SD16 | — | 13 | 2 | no | — |
| 165 | C4×SD16 | — | 13 | 2 | no | — |
| 166 | C4×D8 | — | 13 | 1 | no | — |
| 167 | C4×D8 | — | 13 | 1 | no | — |
| 168 | #436 | — | 13 | 4 | no | — |
| 169 | #436 | — | 26 | 4 | no | — |
| 170 | #431 | — | 13 | 1 | no | — |
| 171 | #431 | — | 26 | 2 | no | — |
| 172 | #427 | — | 13 | 1 | no | — |
| 173 | #423 | — | 13 | 2 | no | — |
| 174 | #423 | — | 26 | 2 | no | — |
| 175 | #416 | — | 13 | 2 | no | — |
| 176 | C4×M16 | — | 13 | 1 | no | — |
| 177 | C2×C4×C8 | — | 13 | 1 | no | — |
| 178 | #335 | — | 13 | 2 | no | — |
| 179 | #335 | — | 13 | 2 | no | — |
| 180 | Q8⋊C8 | — | 13 | 4 | no | — |
| 181 | D4⋊C8 | — | 13 | 4 | no | — |
| 182 | #322 | — | 13 | 2 | no | — |
| 183 | C82 | — | 13 | 2 | no | — |
| 184 | C22×C13 | C2×C4×D4 | 1 | 1 | yes | characteristic |
| 185 | C2×D13 | — | 2 | 1 | no | — |
| 186 | C2×D13 | — | 2 | 1 | no | — |
| 187 | C2×D13 | — | 2 | 1 | no | — |
| 188 | C2×D13 | — | 4 | 2 | no | — |
| 189 | C2×D13 | — | 4 | 2 | no | — |
| 190 | C2×D13 | — | 4 | 2 | no | — |
| 191 | C4×C13 | — | 2 | 4 | no | — |
| 192 | C4×C13 | — | 2 | 1 | no | — |
| 193 | C4×C13 | — | 4 | 2 | no | — |
| 194 | C4×C13 | #443 | 1 | 2 | yes | — |
| 195 | C4×C13 | C22×M16 | 1 | 1 | yes | characteristic |
| 196 | C4×C13 | #568 | 1 | 1 | yes | characteristic |
| 197 | Dic13 | — | 2 | 1 | no | — |
| 198 | Dic13 | — | 2 | 1 | no | — |
| 199 | Dic13 | — | 4 | 2 | no | — |
| 200 | Dic13 | #576 | 1 | 1 | yes | characteristic |
| 201 | Dic13 | #578 | 1 | 1 | yes | characteristic |
| 202 | C2×#41 | — | 13 | 2 | no | — |
| 203 | #135 | — | 26 | 4 | no | — |
| 204 | C2×Q16 | C2×#261 | 1 | 1 | yes | characteristic |
| 205 | C2×SD16 | — | 13 | 2 | no | — |
| 206 | C2×D8 | — | 13 | 1 | no | — |
| 207 | C2×M16 | — | 26 | 4 | no | — |
| 208 | C2×M16 | — | 26 | 1 | no | — |
| 209 | C2×M16 | — | 26 | 2 | no | — |
| 210 | C22×C8 | — | 13 | 1 | no | — |
| 211 | C22×C8 | — | 13 | 1 | no | — |
| 212 | C4×Q8 | — | 13 | 2 | no | — |
| 213 | C4×Q8 | C2×#261 | 1 | 2 | yes | — |
| 214 | C4×D4 | — | 13 | 2 | no | — |
| 215 | C4×D4 | — | 13 | 2 | no | — |
| 216 | C4×D4 | — | 26 | 2 | no | — |
| 217 | C4×D4 | — | 26 | 2 | no | — |
| 218 | #117 | — | 13 | 2 | no | — |
| 219 | #117 | — | 26 | 2 | no | — |
| 220 | C2×C42 | — | 13 | 1 | no | — |
| 221 | C2×C42 | — | 26 | 2 | no | — |
| 222 | #107 | — | 13 | 1 | no | — |
| 223 | #107 | C2×#261 | 1 | 1 | yes | characteristic |
| 224 | #106 | — | 13 | 2 | no | — |
| 225 | C4⋊C8 | — | 13 | 1 | no | — |
| 226 | C4⋊C8 | — | 13 | 1 | no | — |
| 227 | C4⋊C8 | — | 13 | 4 | no | — |
| 228 | C4⋊C8 | — | 26 | 2 | no | — |
| 229 | C4⋊C8 | — | 26 | 4 | no | — |
| 230 | #103 | — | 13 | 2 | no | — |
| 231 | #103 | C2×#261 | 1 | 2 | yes | — |
| 232 | #102 | — | 13 | 2 | no | — |
| 233 | #102 | — | 13 | 2 | no | — |
| 234 | C22⋊C8 | — | 13 | 2 | no | — |
| 235 | C22⋊C8 | — | 26 | 4 | no | — |
| 236 | #97 | — | 26 | 1 | no | — |
| 237 | C4×C8 | — | 13 | 2 | no | — |
| 238 | C4×C8 | — | 13 | 1 | no | — |
| 239 | C4×C8 | — | 13 | 1 | no | — |
| 240 | C4×C8 | — | 13 | 2 | no | — |
| 241 | C4×C8 | — | 13 | 1 | no | — |
| 242 | C4×C8 | — | 26 | 4 | no | — |
| 243 | C4×C8 | C2×#261 | 1 | 1 | yes | characteristic |
| 244 | C2×C13 | D4×M16 | 1 | 1 | yes | characteristic |
| 245 | C2×C13 | #2951 | 1 | 1 | yes | characteristic |
| 246 | C2×C13 | C2×#443 | 1 | 1 | yes | characteristic |
| 247 | D13 | — | 4 | 1 | no | — |
| 248 | D13 | — | 8 | 2 | no | — |
| 249 | #41 | — | 26 | 4 | no | — |
| 250 | #41 | — | 52 | 2 | no | — |
| 251 | C2×Q8 | C22×#261 | 1 | 2 | yes | — |
| 252 | C2×D4 | — | 13 | 2 | no | — |
| 253 | C2×D4 | — | 26 | 2 | no | — |
| 254 | C22×C4 | — | 13 | 1 | no | — |
| 255 | C22×C4 | — | 13 | 1 | no | — |
| 256 | C22×C4 | — | 13 | 1 | no | — |
| 257 | C22×C4 | — | 26 | 2 | no | — |
| 258 | C22×C4 | — | 26 | 2 | no | — |
| 259 | C22×C4 | — | 26 | 2 | no | — |
| 260 | Q16 | #6118 | 1 | 4 | yes | complemented |
| 261 | SD16 | — | 26 | 4 | no | — |
| 262 | D8 | — | 26 | 2 | no | — |
| 263 | M16 | — | 26 | 4 | no | — |
| 264 | M16 | — | 104 | 4 | no | — |
| 265 | M16 | — | 104 | 2 | no | — |
| 266 | C2×C8 | — | 13 | 2 | no | — |
| 267 | C2×C8 | — | 13 | 2 | no | — |
| 268 | C2×C8 | — | 13 | 1 | no | — |
| 269 | C2×C8 | — | 13 | 1 | no | — |
| 270 | C2×C8 | — | 26 | 2 | no | — |
| 271 | C2×C8 | — | 26 | 2 | no | — |
| 272 | C2×C8 | — | 26 | 4 | no | — |
| 273 | C2×C8 | — | 52 | 1 | no | — |
| 274 | C2×C8 | C22×#261 | 1 | 1 | yes | characteristic |
| 275 | C2×C8 | C22×#261 | 1 | 1 | yes | characteristic |
| 276 | C4⋊C4 | — | 2 | 2 | no | — |
| 277 | C4⋊C4 | — | 13 | 2 | no | — |
| 278 | C4⋊C4 | — | 26 | 2 | no | — |
| 279 | C4⋊C4 | C22×#261 | 1 | 2 | yes | — |
| 280 | C22⋊C4 | — | 26 | 2 | no | — |
| 281 | C22⋊C4 | — | 26 | 2 | no | — |
| 282 | C22⋊C4 | — | 26 | 2 | no | — |
| 283 | C42 | — | 2 | 2 | no | — |
| 284 | C42 | — | 13 | 1 | no | — |
| 285 | C42 | — | 13 | 1 | no | — |
| 286 | C42 | — | 13 | 1 | no | — |
| 287 | C42 | — | 26 | 2 | no | — |
| 288 | C42 | — | 26 | 2 | no | — |
| 289 | C42 | C22×#261 | 1 | 1 | yes | characteristic |
| 290 | C13 | #18059 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 291 | C23 | — | 13 | 1 | no | — |
| 292 | C23 | — | 26 | 2 | no | — |
| 293 | Q8 | — | 2 | 2 | no | — |
| 294 | Q8 | C2×#6118 | 1 | 4 | yes | — |
| 295 | D4 | — | 26 | 2 | no | — |
| 296 | D4 | — | 26 | 2 | no | — |
| 297 | D4 | — | 52 | 4 | no | — |
| 298 | C2×C4 | — | 2 | 2 | no | — |
| 299 | C2×C4 | — | 2 | 2 | no | — |
| 300 | C2×C4 | — | 13 | 1 | no | — |
| 301 | C2×C4 | — | 13 | 1 | no | — |
| 302 | C2×C4 | — | 13 | 1 | no | — |
| 303 | C2×C4 | — | 26 | 1 | no | — |
| 304 | C2×C4 | — | 26 | 1 | no | — |
| 305 | C2×C4 | — | 26 | 1 | no | — |
| 306 | C2×C4 | — | 26 | 2 | no | — |
| 307 | C2×C4 | — | 26 | 1 | no | — |
| 308 | C2×C4 | — | 26 | 2 | no | — |
| 309 | C2×C4 | — | 52 | 4 | no | — |
| 310 | C2×C4 | — | 52 | 2 | no | — |
| 311 | C2×C4 | — | 52 | 2 | no | — |
| 312 | C2×C4 | — | 52 | 4 | no | — |
| 313 | C2×C4 | D4×#261 | 1 | 1 | yes | characteristic |
| 314 | C2×C4 | D4×#261 | 1 | 1 | yes | characteristic |
| 315 | C2×C4 | C23×#261 | 1 | 1 | yes | characteristic |
| 316 | C8 | — | 2 | 1 | no | — |
| 317 | C8 | — | 26 | 2 | no | — |
| 318 | C8 | — | 26 | 2 | no | — |
| 319 | C8 | — | 26 | 4 | no | — |
| 320 | C8 | — | 26 | 1 | no | — |
| 321 | C8 | — | 26 | 1 | no | — |
| 322 | C8 | — | 52 | 4 | no | — |
| 323 | C8 | C2×#6118 | 1 | 2 | yes | — |
| 324 | C22 | — | 26 | 1 | no | — |
| 325 | C22 | — | 26 | 1 | no | — |
| 326 | C22 | — | 26 | 1 | no | — |
| 327 | C22 | — | 52 | 2 | no | — |
| 328 | C22 | — | 52 | 2 | no | — |
| 329 | C22 | — | 52 | 2 | no | — |
| 330 | C22 | C2×D4×#261 | 1 | 1 | yes | characteristic |
| 331 | C4 | — | 2 | 4 | no | — |
| 332 | C4 | — | 2 | 1 | no | — |
| 333 | C4 | — | 4 | 2 | no | — |
| 334 | C4 | — | 13 | 1 | no | — |
| 335 | C4 | — | 13 | 1 | no | — |
| 336 | C4 | — | 26 | 1 | no | — |
| 337 | C4 | — | 26 | 1 | no | — |
| 338 | C4 | — | 52 | 2 | no | — |
| 339 | C4 | #11719111 | 1 | 2 | yes | — |
| 340 | C4 | C22×#6118 | 1 | 1 | yes | characteristic |
| 341 | C4 | #11719629 | 1 | 1 | yes | characteristic |
| 342 | C2 | — | 52 | 1 | no | — |
| 343 | C2 | — | 104 | 2 | no | — |
| 344 | C2 | D4×#6118 | 1 | 1 | yes | characteristic |
| 345 | C2 | #13131598 | 1 | 1 | yes | characteristic |
| 346 | C2 | C2×#11719111 | 1 | 1 | yes | characteristic |
Complements
Splittings G = N ⋊ H with N normal; H ≅ G/N.
Maximal subgroups
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
Finite Group Databasebeta