← #13273401
Subgroups — #13273401
Order 1792.
410 conjugacy classes of subgroups.
The subgroup lattice has 340 nodes — too large to display as a diagram.
Conjugacy classes of subgroups
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|
| 1 | C22×#6403 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | C2×C7×#358 | C2 | 1 | 1 | yes | maximal, characteristic |
| 3 | #11729820 | C2 | 1 | 1 | yes | maximal, characteristic |
| 4 | C2×#89298 | C2 | 1 | 1 | yes | maximal, characteristic |
| 5 | C2×Dic7⋊C16 | C2 | 1 | 1 | yes | maximal, characteristic |
| 6 | #11728381 | C2 | 1 | 1 | yes | maximal, characteristic |
| 7 | #11725528 | C2 | 1 | 1 | yes | maximal, characteristic |
| 8 | C22×C7×Q16 | C22 | 1 | 1 | yes | characteristic |
| 9 | C22×Dic28 | C22 | 1 | 1 | yes | characteristic |
| 10 | C22×C7×C16 | C22 | 1 | 1 | yes | characteristic |
| 11 | C2×C7×#107 | C22 | 1 | 1 | yes | characteristic |
| 12 | #90002 | — | 2 | 1 | no | — |
| 13 | C2×#6409 | — | 2 | 1 | no | — |
| 14 | C2×#6403 | — | 2 | 2 | no | — |
| 15 | C2×#6403 | — | 2 | 2 | no | — |
| 16 | C2×#6403 | — | 2 | 2 | no | — |
| 17 | C2×#6392 | C22 | 1 | 1 | yes | characteristic |
| 18 | C2×C8×Dic7 | C22 | 1 | 1 | yes | characteristic |
| 19 | C22×C7⋊C16 | C22 | 1 | 1 | yes | characteristic |
| 20 | #89746 | — | 2 | 1 | no | — |
| 21 | C2×#6384 | — | 2 | 1 | no | — |
| 22 | C7×#358 | — | 2 | 2 | no | — |
| 23 | #89298 | — | 2 | 2 | no | — |
| 24 | Dic7⋊C16 | — | 2 | 2 | no | — |
| 25 | #13450 | — | 7 | 1 | no | maximal, Sylow |
| 26 | C22×C7×Q8 | — | 2 | 1 | no | — |
| 27 | C22×Dic14 | — | 2 | 1 | no | — |
| 28 | C2×C7×Q16 | — | 2 | 1 | no | — |
| 29 | C2×C7×Q16 | — | 2 | 1 | no | — |
| 30 | C2×C7×Q16 | — | 2 | 1 | no | — |
| 31 | C2×C7×Q16 | — | 2 | 1 | no | — |
| 32 | C2×C7×Q16 | — | 2 | 1 | no | — |
| 33 | C2×C7×Q16 | D4 | 1 | 2 | yes | — |
| 34 | C22×C7×C8 | C23 | 1 | 1 | yes | characteristic |
| 35 | C2×C7×C4⋊C4 | — | 2 | 1 | no | — |
| 36 | C2×C4⋊Dic7 | — | 2 | 1 | no | — |
| 37 | C2×C4×Dic7 | D4 | 1 | 1 | yes | characteristic |
| 38 | C22×C7⋊C8 | D4 | 1 | 1 | yes | characteristic |
| 39 | C2×Dic28 | — | 2 | 1 | no | — |
| 40 | C2×Dic28 | — | 2 | 1 | no | — |
| 41 | C2×Dic28 | — | 2 | 1 | no | — |
| 42 | C2×Dic28 | — | 2 | 1 | no | — |
| 43 | C2×Dic28 | — | 2 | 1 | no | — |
| 44 | C2×Dic28 | D4 | 1 | 2 | yes | — |
| 45 | C2×C7×C16 | — | 2 | 1 | no | — |
| 46 | C2×C7×C16 | — | 2 | 1 | no | — |
| 47 | C2×C7×C16 | — | 2 | 1 | no | — |
| 48 | C7×#107 | — | 2 | 1 | no | — |
| 49 | C7×#107 | — | 2 | 1 | no | — |
| 50 | #6409 | — | 4 | 2 | no | — |
| 51 | C7⋊#95 | — | 4 | 1 | no | — |
| 52 | C7⋊#95 | — | 4 | 1 | no | — |
| 53 | C7⋊#95 | — | 4 | 1 | no | — |
| 54 | C7⋊#95 | — | 4 | 1 | no | — |
| 55 | #6403 | — | 2 | 8 | no | — |
| 56 | #6392 | — | 2 | 1 | no | — |
| 57 | #6392 | — | 2 | 1 | no | — |
| 58 | C8×Dic7 | — | 2 | 1 | no | — |
| 59 | C8×Dic7 | — | 2 | 1 | no | — |
| 60 | C2×C7⋊C16 | — | 2 | 1 | no | — |
| 61 | C2×C7⋊C16 | — | 2 | 1 | no | — |
| 62 | C2×C7⋊C16 | D4 | 1 | 2 | yes | — |
| 63 | #6384 | — | 4 | 2 | no | — |
| 64 | C22×Q32 | — | 7 | 1 | no | — |
| 65 | C2×C4⋊C16 | — | 7 | 1 | no | — |
| 66 | C2×#358 | — | 7 | 1 | no | — |
| 67 | C2×#358 | D7 | 1 | 1 | yes | characteristic |
| 68 | #1969 | — | 7 | 1 | no | — |
| 69 | #1969 | — | 7 | 1 | no | — |
| 70 | #1380 | — | 7 | 1 | no | — |
| 71 | C2×C7×Q8 | — | 2 | 2 | no | — |
| 72 | C2×C7×Q8 | — | 4 | 1 | no | — |
| 73 | C2×C7×Q8 | — | 4 | 1 | no | — |
| 74 | C2×C7×Q8 | — | 4 | 1 | no | — |
| 75 | C2×C7×Q8 | — | 4 | 1 | no | — |
| 76 | C2×C7×Q8 | — | 4 | 1 | no | — |
| 77 | C22×C4×C7 | — | 4 | 1 | no | — |
| 78 | C22×C4×C7 | — | 4 | 1 | no | — |
| 79 | C22×C4×C7 | C2×D4 | 1 | 1 | yes | characteristic |
| 80 | C22×Dic7 | — | 4 | 1 | no | — |
| 81 | C22×Dic7 | — | 4 | 1 | no | — |
| 82 | C22×Dic7 | D8 | 1 | 1 | yes | characteristic |
| 83 | C22×Dic7 | D8 | 1 | 1 | yes | characteristic |
| 84 | C2×Dic14 | — | 2 | 2 | no | — |
| 85 | C2×Dic14 | — | 4 | 1 | no | — |
| 86 | C2×Dic14 | — | 4 | 1 | no | — |
| 87 | C2×Dic14 | — | 4 | 1 | no | — |
| 88 | C2×Dic14 | — | 4 | 1 | no | — |
| 89 | C2×Dic14 | — | 4 | 1 | no | — |
| 90 | C7×Q16 | — | 2 | 2 | no | — |
| 91 | C7×Q16 | — | 2 | 2 | no | — |
| 92 | C7×Q16 | — | 4 | 1 | no | — |
| 93 | C7×Q16 | — | 4 | 1 | no | — |
| 94 | C2×C7×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 95 | C2×C7×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 96 | C2×C7×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 97 | C2×C7×C8 | #41 | 1 | 1 | yes | characteristic |
| 98 | C2×C7×C8 | #41 | 1 | 1 | yes | characteristic |
| 99 | C2×C7×C8 | #41 | 1 | 1 | yes | characteristic |
| 100 | C7×C4⋊C4 | — | 4 | 1 | no | — |
| 101 | C7×C4⋊C4 | — | 4 | 1 | no | — |
| 102 | C4⋊Dic7 | — | 4 | 1 | no | — |
| 103 | C4⋊Dic7 | — | 4 | 1 | no | — |
| 104 | C4×Dic7 | — | 2 | 1 | no | — |
| 105 | C4×Dic7 | — | 2 | 1 | no | — |
| 106 | C2×C7⋊C8 | — | 2 | 1 | no | — |
| 107 | C2×C7⋊C8 | — | 2 | 1 | no | — |
| 108 | C2×C7⋊C8 | — | 2 | 1 | no | — |
| 109 | Dic28 | — | 2 | 2 | no | — |
| 110 | Dic28 | — | 2 | 2 | no | — |
| 111 | Dic28 | — | 4 | 1 | no | — |
| 112 | Dic28 | — | 4 | 1 | no | — |
| 113 | C7×C16 | — | 4 | 1 | no | — |
| 114 | C7⋊C16 | — | 2 | 2 | no | — |
| 115 | C22×Q16 | — | 7 | 1 | no | — |
| 116 | C22×Q16 | C2×D7 | 1 | 1 | yes | characteristic |
| 117 | C2×Q32 | — | 14 | 2 | no | — |
| 118 | C2×Q32 | — | 14 | 2 | no | — |
| 119 | C2×Q32 | — | 14 | 2 | no | — |
| 120 | C22×C16 | — | 7 | 1 | no | — |
| 121 | C22×C16 | C2×D7 | 1 | 1 | yes | characteristic |
| 122 | C2×#107 | — | 7 | 1 | no | — |
| 123 | C2×#107 | C2×D7 | 1 | 1 | yes | characteristic |
| 124 | C2×#103 | — | 14 | 1 | no | — |
| 125 | C2×#103 | — | 14 | 1 | no | — |
| 126 | C2×C4×C8 | — | 7 | 1 | no | — |
| 127 | #391 | — | 14 | 1 | no | — |
| 128 | #391 | — | 14 | 1 | no | — |
| 129 | C4⋊C16 | — | 14 | 2 | no | — |
| 130 | #358 | — | 2 | 2 | no | — |
| 131 | #358 | — | 14 | 2 | no | — |
| 132 | C23×C7 | C2×D8 | 1 | 1 | yes | characteristic |
| 133 | C7×Q8 | — | 4 | 2 | no | — |
| 134 | C7×Q8 | — | 4 | 2 | no | — |
| 135 | C7×Q8 | — | 8 | 1 | no | — |
| 136 | C7×Q8 | — | 8 | 1 | no | — |
| 137 | C2×C4×C7 | — | 4 | 2 | no | — |
| 138 | C2×C4×C7 | — | 8 | 1 | no | — |
| 139 | C2×C4×C7 | — | 8 | 1 | no | — |
| 140 | C2×C4×C7 | — | 8 | 1 | no | — |
| 141 | C2×C4×C7 | — | 8 | 1 | no | — |
| 142 | C2×C4×C7 | — | 8 | 1 | no | — |
| 143 | C2×C4×C7 | #121 | 1 | 1 | yes | characteristic |
| 144 | C2×C4×C7 | #121 | 1 | 1 | yes | characteristic |
| 145 | C2×C4×C7 | #121 | 1 | 1 | yes | characteristic |
| 146 | C2×C4×C7 | #135 | 1 | 1 | yes | characteristic |
| 147 | C2×C4×C7 | AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 148 | C2×C4×C7 | AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 149 | C2×Dic7 | — | 2 | 1 | no | — |
| 150 | C2×Dic7 | — | 2 | 1 | no | — |
| 151 | C2×Dic7 | — | 2 | 1 | no | — |
| 152 | C2×Dic7 | — | 2 | 1 | no | — |
| 153 | C2×Dic7 | — | 2 | 1 | no | — |
| 154 | C2×Dic7 | — | 4 | 2 | no | — |
| 155 | C2×Dic7 | — | 8 | 1 | no | — |
| 156 | C2×Dic7 | — | 8 | 1 | no | — |
| 157 | C2×Dic7 | — | 8 | 1 | no | — |
| 158 | C2×Dic7 | — | 8 | 1 | no | — |
| 159 | C2×Dic7 | — | 8 | 1 | no | — |
| 160 | C2×Dic7 | Q32 | 1 | 2 | yes | complemented |
| 161 | Dic14 | — | 4 | 2 | no | — |
| 162 | Dic14 | — | 4 | 2 | no | — |
| 163 | Dic14 | — | 8 | 1 | no | — |
| 164 | Dic14 | — | 8 | 1 | no | — |
| 165 | C7×C8 | #120 | 1 | 1 | yes | characteristic |
| 166 | C7×C8 | #123 | 1 | 1 | yes | characteristic |
| 167 | C7×C8 | #123 | 1 | 1 | yes | characteristic |
| 168 | C7×C8 | #124 | 1 | 1 | yes | characteristic |
| 169 | C7⋊C8 | — | 4 | 1 | no | — |
| 170 | C22×Q8 | — | 2 | 1 | no | — |
| 171 | C22×Q8 | — | 14 | 1 | no | — |
| 172 | C2×Q16 | — | 2 | 1 | no | — |
| 173 | C2×Q16 | — | 2 | 1 | no | — |
| 174 | C2×Q16 | — | 2 | 1 | no | — |
| 175 | C2×Q16 | — | 2 | 1 | no | — |
| 176 | C2×Q16 | — | 2 | 1 | no | — |
| 177 | C2×Q16 | — | 7 | 2 | no | — |
| 178 | C2×Q16 | — | 14 | 1 | no | — |
| 179 | C2×Q16 | — | 14 | 1 | no | — |
| 180 | C2×Q16 | — | 14 | 1 | no | — |
| 181 | C2×Q16 | — | 14 | 1 | no | — |
| 182 | C2×Q16 | — | 14 | 1 | no | — |
| 183 | C2×Q16 | C22⋊D7 | 1 | 2 | yes | — |
| 184 | C22×C8 | — | 7 | 1 | no | — |
| 185 | C22×C8 | C22×D7 | 1 | 1 | yes | characteristic |
| 186 | C2×C4⋊C4 | — | 2 | 1 | no | — |
| 187 | C2×C4⋊C4 | — | 14 | 1 | no | — |
| 188 | C2×C42 | — | 7 | 1 | no | — |
| 189 | Q32 | — | 14 | 8 | no | — |
| 190 | C2×C16 | — | 2 | 1 | no | — |
| 191 | C2×C16 | — | 2 | 1 | no | — |
| 192 | C2×C16 | — | 2 | 1 | no | — |
| 193 | C2×C16 | — | 7 | 2 | no | — |
| 194 | C2×C16 | — | 14 | 1 | no | — |
| 195 | C2×C16 | — | 14 | 1 | no | — |
| 196 | #107 | — | 2 | 1 | no | — |
| 197 | #107 | — | 2 | 1 | no | — |
| 198 | #107 | — | 14 | 1 | no | — |
| 199 | #107 | — | 14 | 1 | no | — |
| 200 | #103 | — | 28 | 2 | no | — |
| 201 | #103 | — | 28 | 2 | no | — |
| 202 | C4×C8 | — | 14 | 1 | no | — |
| 203 | C4×C8 | — | 14 | 1 | no | — |
| 204 | #95 | — | 28 | 1 | no | — |
| 205 | #95 | — | 28 | 1 | no | — |
| 206 | #95 | — | 28 | 1 | no | — |
| 207 | #95 | — | 28 | 1 | no | — |
| 208 | C22×C7 | #459 | 1 | 1 | yes | characteristic |
| 209 | C22×C7 | #459 | 1 | 1 | yes | characteristic |
| 210 | C22×C7 | #466 | 1 | 1 | yes | characteristic |
| 211 | C22×C7 | C2×Q32 | 1 | 1 | yes | characteristic |
| 212 | C22×C7 | #508 | 1 | 1 | yes | characteristic |
| 213 | C22×C7 | #510 | 1 | 1 | yes | characteristic |
| 214 | C22×C7 | #510 | 1 | 1 | yes | characteristic |
| 215 | C4×C7 | — | 8 | 2 | no | — |
| 216 | C4×C7 | — | 16 | 1 | no | — |
| 217 | C4×C7 | #394 | 1 | 1 | yes | characteristic |
| 218 | C4×C7 | #463 | 1 | 1 | yes | characteristic |
| 219 | C4×C7 | #463 | 1 | 1 | yes | characteristic |
| 220 | C4×C7 | #469 | 1 | 1 | yes | characteristic |
| 221 | Dic7 | — | 2 | 2 | no | — |
| 222 | Dic7 | — | 4 | 1 | no | — |
| 223 | Dic7 | — | 8 | 2 | no | — |
| 224 | Dic7 | — | 16 | 1 | no | — |
| 225 | C2×Q8 | — | 2 | 2 | no | — |
| 226 | C2×Q8 | — | 4 | 1 | no | — |
| 227 | C2×Q8 | — | 4 | 1 | no | — |
| 228 | C2×Q8 | — | 4 | 1 | no | — |
| 229 | C2×Q8 | — | 4 | 1 | no | — |
| 230 | C2×Q8 | — | 4 | 1 | no | — |
| 231 | C2×Q8 | — | 14 | 2 | no | — |
| 232 | C2×Q8 | — | 28 | 1 | no | — |
| 233 | C2×Q8 | — | 28 | 1 | no | — |
| 234 | C2×Q8 | — | 28 | 1 | no | — |
| 235 | C2×Q8 | — | 28 | 1 | no | — |
| 236 | C2×Q8 | — | 28 | 1 | no | — |
| 237 | C22×C4 | — | 4 | 1 | no | — |
| 238 | C22×C4 | — | 4 | 1 | no | — |
| 239 | C22×C4 | — | 7 | 1 | no | — |
| 240 | C22×C4 | — | 7 | 1 | no | — |
| 241 | C22×C4 | — | 28 | 1 | no | — |
| 242 | C22×C4 | — | 28 | 1 | no | — |
| 243 | C22×C4 | D4×D7 | 1 | 1 | yes | characteristic |
| 244 | Q16 | — | 2 | 2 | no | — |
| 245 | Q16 | — | 2 | 2 | no | — |
| 246 | Q16 | — | 4 | 1 | no | — |
| 247 | Q16 | — | 4 | 1 | no | — |
| 248 | Q16 | — | 14 | 2 | no | — |
| 249 | Q16 | — | 14 | 2 | no | — |
| 250 | Q16 | — | 28 | 1 | no | — |
| 251 | Q16 | — | 28 | 1 | no | — |
| 252 | C2×C8 | — | 14 | 1 | no | — |
| 253 | C2×C8 | — | 14 | 1 | no | — |
| 254 | C2×C8 | — | 14 | 1 | no | — |
| 255 | C2×C8 | #1157 | 1 | 1 | yes | characteristic |
| 256 | C2×C8 | #1157 | 1 | 1 | yes | characteristic |
| 257 | C2×C8 | D4×D7 | 1 | 1 | yes | characteristic |
| 258 | C2×C8 | D4×D7 | 1 | 1 | yes | characteristic |
| 259 | C2×C8 | #1159 | 1 | 1 | yes | characteristic |
| 260 | C2×C8 | C2×C22⋊D7 | 1 | 1 | yes | characteristic |
| 261 | C4⋊C4 | — | 4 | 1 | no | — |
| 262 | C4⋊C4 | — | 4 | 1 | no | — |
| 263 | C4⋊C4 | — | 28 | 1 | no | — |
| 264 | C4⋊C4 | — | 28 | 1 | no | — |
| 265 | C42 | — | 14 | 1 | no | — |
| 266 | C42 | — | 14 | 1 | no | — |
| 267 | C16 | — | 4 | 1 | no | — |
| 268 | C16 | — | 14 | 2 | no | — |
| 269 | C2×C7 | #2054 | 1 | 1 | yes | characteristic |
| 270 | C2×C7 | #2209 | 1 | 1 | yes | characteristic |
| 271 | C2×C7 | #2209 | 1 | 1 | yes | characteristic |
| 272 | C2×C7 | #2211 | 1 | 1 | yes | characteristic |
| 273 | C2×C7 | #2211 | 1 | 1 | yes | characteristic |
| 274 | C2×C7 | #2216 | 1 | 1 | yes | characteristic |
| 275 | C2×C7 | #2219 | 1 | 1 | yes | characteristic |
| 276 | C23 | D7×D8 | 1 | 1 | yes | characteristic |
| 277 | Q8 | — | 4 | 2 | no | — |
| 278 | Q8 | — | 4 | 2 | no | — |
| 279 | Q8 | — | 8 | 1 | no | — |
| 280 | Q8 | — | 8 | 1 | no | — |
| 281 | Q8 | — | 28 | 2 | no | — |
| 282 | Q8 | — | 28 | 2 | no | — |
| 283 | Q8 | — | 56 | 1 | no | — |
| 284 | Q8 | — | 56 | 1 | no | — |
| 285 | C2×C4 | — | 4 | 2 | no | — |
| 286 | C2×C4 | — | 7 | 2 | no | — |
| 287 | C2×C4 | — | 8 | 1 | no | — |
| 288 | C2×C4 | — | 8 | 1 | no | — |
| 289 | C2×C4 | — | 8 | 1 | no | — |
| 290 | C2×C4 | — | 8 | 1 | no | — |
| 291 | C2×C4 | — | 8 | 1 | no | — |
| 292 | C2×C4 | — | 14 | 1 | no | — |
| 293 | C2×C4 | — | 14 | 1 | no | — |
| 294 | C2×C4 | — | 14 | 1 | no | — |
| 295 | C2×C4 | — | 14 | 1 | no | — |
| 296 | C2×C4 | — | 14 | 1 | no | — |
| 297 | C2×C4 | — | 28 | 2 | no | — |
| 298 | C2×C4 | — | 56 | 1 | no | — |
| 299 | C2×C4 | — | 56 | 1 | no | — |
| 300 | C2×C4 | — | 56 | 1 | no | — |
| 301 | C2×C4 | — | 56 | 1 | no | — |
| 302 | C2×C4 | — | 56 | 1 | no | — |
| 303 | C2×C4 | #6447 | 1 | 1 | yes | characteristic |
| 304 | C2×C4 | #6447 | 1 | 1 | yes | characteristic |
| 305 | C2×C4 | #6474 | 1 | 1 | yes | characteristic |
| 306 | C2×C4 | #6477 | 1 | 1 | yes | characteristic |
| 307 | C2×C4 | #6479 | 1 | 1 | yes | characteristic |
| 308 | C2×C4 | #6502 | 1 | 1 | yes | characteristic |
| 309 | C8 | — | 28 | 1 | no | — |
| 310 | C8 | #6446 | 1 | 1 | yes | characteristic |
| 311 | C8 | #6448 | 1 | 1 | yes | characteristic |
| 312 | C8 | #6492 | 1 | 1 | yes | characteristic |
| 313 | C8 | #6500 | 1 | 1 | yes | characteristic |
| 314 | C7 | #13450 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 315 | C22 | #89547 | 1 | 1 | yes | characteristic |
| 316 | C22 | #89558 | 1 | 1 | yes | characteristic |
| 317 | C22 | #89687 | 1 | 1 | yes | characteristic |
| 318 | C22 | #89688 | 1 | 1 | yes | characteristic |
| 319 | C22 | D7×Q32 | 1 | 1 | yes | characteristic |
| 320 | C22 | #89690 | 1 | 1 | yes | characteristic |
| 321 | C22 | #89922 | 1 | 1 | yes | characteristic |
| 322 | C4 | — | 8 | 2 | no | — |
| 323 | C4 | — | 14 | 2 | no | — |
| 324 | C4 | — | 16 | 1 | no | — |
| 325 | C4 | — | 28 | 1 | no | — |
| 326 | C4 | — | 56 | 2 | no | — |
| 327 | C4 | — | 112 | 1 | no | — |
| 328 | C4 | #89554 | 1 | 1 | yes | characteristic |
| 329 | C4 | #89559 | 1 | 1 | yes | characteristic |
| 330 | C4 | #89731 | 1 | 1 | yes | characteristic |
| 331 | C4 | #89937 | 1 | 1 | yes | characteristic |
| 332 | C2 | #11726981 | 1 | 1 | yes | characteristic |
| 333 | C2 | #11726983 | 1 | 1 | yes | characteristic |
| 334 | C2 | #11726990 | 1 | 1 | yes | characteristic |
| 335 | C2 | #11726991 | 1 | 1 | yes | characteristic |
| 336 | C2 | #11727966 | 1 | 1 | yes | characteristic |
| 337 | C2 | #11729232 | 1 | 1 | yes | characteristic |
| 338 | C2 | #11729251 | 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