← #496932
Subgroups — #496932
Order 512.
480 conjugacy classes of subgroups.
The subgroup lattice has 358 nodes — too large to display as a diagram.
Conjugacy classes of subgroups
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|
| 1 | #33627 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | #21733 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 3 | #21284 | C2 | 1 | 1 | yes | maximal, characteristic |
| 4 | #13278 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 5 | #13185 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 6 | #13174 | C2 | 1 | 2 | yes | maximal, complemented |
| 7 | #13155 | C2 | 1 | 2 | yes | maximal |
| 8 | #13142 | C2 | 1 | 2 | yes | maximal |
| 9 | #13118 | C2 | 1 | 2 | yes | maximal, complemented |
| 10 | #12818 | C2 | 1 | 1 | yes | maximal, characteristic |
| 11 | #12657 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 12 | #3160 | C22 | 1 | 1 | yes | characteristic |
| 13 | #2961 | — | 2 | 1 | no | — |
| 14 | C2×C4×D8 | C22 | 1 | 1 | yes | characteristic |
| 15 | #2319 | — | 2 | 1 | no | — |
| 16 | #2228 | C4 | 1 | 4 | yes | complemented |
| 17 | #2226 | C4 | 1 | 2 | yes | complemented |
| 18 | #2224 | C4 | 1 | 2 | yes | complemented |
| 19 | #2159 | C22 | 1 | 2 | yes | — |
| 20 | C2×#365 | C22 | 1 | 2 | yes | — |
| 21 | #2150 | C22 | 1 | 1 | yes | characteristic |
| 22 | #2150 | C22 | 1 | 1 | yes | characteristic |
| 23 | C2×#361 | C22 | 1 | 2 | yes | — |
| 24 | #2140 | C22 | 1 | 2 | yes | — |
| 25 | C2×#347 | C22 | 1 | 2 | yes | — |
| 26 | #1995 | — | 2 | 1 | no | — |
| 27 | #1972 | C22 | 1 | 1 | yes | characteristic |
| 28 | #1972 | C22 | 1 | 1 | yes | characteristic |
| 29 | #1946 | C22 | 1 | 2 | yes | — |
| 30 | #1945 | — | 2 | 1 | no | — |
| 31 | #1943 | C22 | 1 | 1 | yes | characteristic |
| 32 | #1943 | C22 | 1 | 1 | yes | characteristic |
| 33 | #1934 | — | 2 | 1 | no | — |
| 34 | #1934 | — | 2 | 1 | no | — |
| 35 | #1848 | C22 | 1 | 1 | yes | characteristic |
| 36 | C4×#106 | C22 | 1 | 1 | yes | characteristic |
| 37 | #1773 | C22 | 1 | 2 | yes | — |
| 38 | #1772 | — | 2 | 1 | no | — |
| 39 | #1762 | — | 2 | 1 | no | — |
| 40 | #1726 | C22 | 1 | 1 | yes | characteristic |
| 41 | #1387 | C22 | 1 | 2 | yes | — |
| 42 | #1386 | C22 | 1 | 2 | yes | — |
| 43 | #1386 | C22 | 1 | 2 | yes | — |
| 44 | #1383 | C22 | 1 | 2 | yes | — |
| 45 | #1375 | C22 | 1 | 2 | yes | — |
| 46 | C22×D8 | C23 | 1 | 1 | yes | characteristic |
| 47 | #533 | — | 2 | 1 | no | — |
| 48 | C2×C4×D4 | — | 2 | 1 | no | — |
| 49 | C2×M32 | C23 | 1 | 2 | yes | — |
| 50 | C2×M32 | C23 | 1 | 2 | yes | — |
| 51 | #500 | C2×C4 | 1 | 1 | yes | characteristic |
| 52 | #500 | C2×C4 | 1 | 1 | yes | characteristic |
| 53 | #499 | — | 2 | 1 | no | — |
| 54 | #499 | C2×C4 | 1 | 2 | yes | — |
| 55 | #498 | — | 2 | 1 | no | — |
| 56 | #446 | — | 4 | 2 | no | — |
| 57 | #446 | — | 4 | 2 | no | — |
| 58 | C4×D8 | — | 2 | 1 | no | — |
| 59 | C4×D8 | — | 2 | 1 | no | — |
| 60 | C4×D8 | C2×C4 | 1 | 2 | yes | — |
| 61 | C4×D8 | C2×C4 | 1 | 2 | yes | — |
| 62 | C2×#108 | — | 2 | 1 | no | — |
| 63 | C2×#108 | C23 | 1 | 2 | yes | — |
| 64 | #427 | — | 2 | 1 | no | — |
| 65 | #427 | C23 | 1 | 2 | yes | — |
| 66 | C2×#107 | C23 | 1 | 1 | yes | characteristic |
| 67 | C2×#106 | C23 | 1 | 1 | yes | characteristic |
| 68 | C2×#106 | C23 | 1 | 1 | yes | characteristic |
| 69 | #424 | — | 2 | 2 | no | — |
| 70 | #423 | — | 2 | 1 | no | — |
| 71 | C2×#102 | — | 2 | 1 | no | — |
| 72 | C2×#102 | — | 2 | 1 | no | — |
| 73 | C2×#102 | — | 2 | 1 | no | — |
| 74 | #405 | — | 2 | 2 | no | — |
| 75 | C2×#97 | D4 | 1 | 1 | yes | characteristic |
| 76 | C2×#97 | C23 | 1 | 1 | yes | characteristic |
| 77 | C2×#97 | C23 | 1 | 1 | yes | characteristic |
| 78 | C2×C4×C8 | D4 | 1 | 1 | yes | characteristic |
| 79 | C2×C4×C8 | D4 | 1 | 1 | yes | characteristic |
| 80 | C2×C4×C8 | C23 | 1 | 1 | yes | characteristic |
| 81 | #390 | — | 2 | 1 | no | — |
| 82 | #390 | — | 2 | 1 | no | — |
| 83 | #389 | — | 2 | 1 | no | — |
| 84 | #389 | — | 2 | 1 | no | — |
| 85 | #388 | — | 4 | 1 | no | — |
| 86 | #388 | — | 4 | 1 | no | — |
| 87 | #381 | — | 4 | 1 | no | — |
| 88 | #380 | — | 4 | 1 | no | — |
| 89 | C4×C4⋊C4 | — | 2 | 1 | no | — |
| 90 | #376 | D4 | 1 | 1 | yes | characteristic |
| 91 | #367 | C2×C4 | 1 | 4 | yes | — |
| 92 | #366 | C2×C4 | 1 | 4 | yes | — |
| 93 | #365 | — | 4 | 2 | no | — |
| 94 | C4⋊C16 | — | 2 | 1 | no | — |
| 95 | C4⋊C16 | — | 2 | 1 | no | — |
| 96 | C4⋊C16 | C2×C4 | 1 | 2 | yes | — |
| 97 | C4⋊C16 | C2×C4 | 1 | 2 | yes | — |
| 98 | #361 | — | 4 | 2 | no | — |
| 99 | #357 | C2×C4 | 1 | 4 | yes | — |
| 100 | #357 | C2×C4 | 1 | 4 | yes | — |
| 101 | #347 | — | 4 | 2 | no | — |
| 102 | #340 | — | 2 | 1 | no | — |
| 103 | #340 | — | 2 | 1 | no | — |
| 104 | #340 | — | 2 | 1 | no | — |
| 105 | #339 | — | 2 | 2 | no | — |
| 106 | #339 | — | 2 | 2 | no | — |
| 107 | C22×D4 | — | 2 | 1 | no | — |
| 108 | C23×C4 | — | 4 | 1 | no | — |
| 109 | C2×D8 | — | 2 | 1 | no | — |
| 110 | C2×D8 | — | 2 | 1 | no | — |
| 111 | C2×D8 | — | 2 | 1 | no | — |
| 112 | C2×D8 | — | 2 | 1 | no | — |
| 113 | C2×D8 | — | 2 | 1 | no | — |
| 114 | C2×D8 | C22×C4 | 1 | 2 | yes | — |
| 115 | C2×M16 | — | 2 | 2 | no | — |
| 116 | C22×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 117 | C22×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 118 | C22×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 119 | C22×C8 | C24 | 1 | 1 | yes | characteristic |
| 120 | C4⋊Q8 | — | 2 | 1 | no | — |
| 121 | C4⋊Q8 | — | 2 | 1 | no | — |
| 122 | #125 | — | 2 | 2 | no | — |
| 123 | C22⋊Q8 | — | 4 | 1 | no | — |
| 124 | C22⋊Q8 | — | 4 | 1 | no | — |
| 125 | C4×Q8 | — | 4 | 1 | no | — |
| 126 | C4×Q8 | — | 4 | 1 | no | — |
| 127 | C4×D4 | — | 2 | 2 | no | — |
| 128 | C4×D4 | — | 2 | 2 | no | — |
| 129 | C4×D4 | — | 4 | 1 | no | — |
| 130 | C4×D4 | — | 4 | 1 | no | — |
| 131 | #117 | — | 2 | 2 | no | — |
| 132 | C2×C4⋊C4 | — | 2 | 1 | no | — |
| 133 | C2×C4⋊C4 | — | 2 | 1 | no | — |
| 134 | C2×C4⋊C4 | — | 2 | 1 | no | — |
| 135 | C2×C4⋊C4 | — | 4 | 1 | no | — |
| 136 | C2×C4⋊C4 | — | 4 | 1 | no | — |
| 137 | C2×C22⋊C4 | — | 4 | 1 | no | — |
| 138 | C2×C22⋊C4 | — | 4 | 1 | no | — |
| 139 | C2×C22⋊C4 | — | 4 | 1 | no | — |
| 140 | C2×C22⋊C4 | — | 4 | 1 | no | — |
| 141 | C2×C22⋊C4 | — | 4 | 1 | no | — |
| 142 | C2×C42 | — | 4 | 1 | no | — |
| 143 | C2×C42 | C2×D4 | 1 | 1 | yes | characteristic |
| 144 | C2×C42 | C2×D4 | 1 | 1 | yes | characteristic |
| 145 | C2×C42 | C2×D4 | 1 | 1 | yes | characteristic |
| 146 | M32 | — | 2 | 2 | no | — |
| 147 | M32 | — | 2 | 2 | no | — |
| 148 | M32 | — | 2 | 2 | no | — |
| 149 | M32 | — | 2 | 2 | no | — |
| 150 | C2×C16 | — | 2 | 2 | no | — |
| 151 | C2×C16 | C22×C4 | 1 | 4 | yes | — |
| 152 | #108 | — | 2 | 2 | no | — |
| 153 | #108 | — | 2 | 2 | no | — |
| 154 | #108 | — | 4 | 2 | no | — |
| 155 | #107 | — | 2 | 1 | no | — |
| 156 | #107 | — | 2 | 1 | no | — |
| 157 | #107 | — | 2 | 1 | no | — |
| 158 | #107 | C22×C4 | 1 | 2 | yes | — |
| 159 | #107 | C22×C4 | 1 | 2 | yes | — |
| 160 | #107 | C22×C4 | 1 | 2 | yes | — |
| 161 | #106 | — | 2 | 2 | no | — |
| 162 | #106 | — | 2 | 2 | no | — |
| 163 | #106 | — | 2 | 1 | no | — |
| 164 | #106 | — | 2 | 1 | no | — |
| 165 | #106 | — | 2 | 1 | no | — |
| 166 | #106 | — | 2 | 1 | no | — |
| 167 | C4⋊C8 | — | 4 | 4 | no | — |
| 168 | C4⋊C8 | — | 4 | 1 | no | — |
| 169 | C4⋊C8 | — | 4 | 1 | no | — |
| 170 | #102 | — | 2 | 2 | no | — |
| 171 | #102 | — | 2 | 2 | no | — |
| 172 | #102 | — | 4 | 2 | no | — |
| 173 | #102 | — | 4 | 2 | no | — |
| 174 | #97 | — | 2 | 1 | no | — |
| 175 | #97 | — | 2 | 1 | no | — |
| 176 | #97 | — | 2 | 1 | no | — |
| 177 | #97 | — | 2 | 1 | no | — |
| 178 | #97 | — | 2 | 1 | no | — |
| 179 | #97 | — | 2 | 1 | no | — |
| 180 | #97 | — | 4 | 2 | no | — |
| 181 | C4×C8 | — | 2 | 2 | no | — |
| 182 | C4×C8 | — | 4 | 1 | no | — |
| 183 | C4×C8 | — | 4 | 2 | no | — |
| 184 | C4×C8 | C22×C4 | 1 | 1 | yes | characteristic |
| 185 | C4×C8 | C22×C4 | 1 | 1 | yes | characteristic |
| 186 | C4×C8 | #41 | 1 | 1 | yes | characteristic |
| 187 | C4×C8 | #41 | 1 | 1 | yes | characteristic |
| 188 | #95 | — | 2 | 1 | no | — |
| 189 | #95 | — | 2 | 1 | no | — |
| 190 | #95 | — | 4 | 1 | no | — |
| 191 | #95 | — | 4 | 1 | no | — |
| 192 | #95 | — | 4 | 1 | no | — |
| 193 | C24 | — | 4 | 1 | no | — |
| 194 | C2×Q8 | — | 4 | 1 | no | — |
| 195 | C2×Q8 | — | 4 | 1 | no | — |
| 196 | C2×D4 | — | 2 | 2 | no | — |
| 197 | C2×D4 | — | 4 | 1 | no | — |
| 198 | C2×D4 | — | 4 | 1 | no | — |
| 199 | C2×D4 | — | 4 | 1 | no | — |
| 200 | C2×D4 | — | 4 | 1 | no | — |
| 201 | C2×D4 | — | 4 | 1 | no | — |
| 202 | C22×C4 | — | 2 | 1 | no | — |
| 203 | C22×C4 | — | 2 | 1 | no | — |
| 204 | C22×C4 | — | 4 | 1 | no | — |
| 205 | C22×C4 | — | 4 | 2 | no | — |
| 206 | C22×C4 | — | 4 | 2 | no | — |
| 207 | C22×C4 | — | 4 | 1 | no | — |
| 208 | C22×C4 | — | 4 | 1 | no | — |
| 209 | C22×C4 | — | 16 | 1 | no | — |
| 210 | C22×C4 | — | 16 | 1 | no | — |
| 211 | C22×C4 | AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 212 | C22×C4 | AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 213 | C22×C4 | C22×D4 | 1 | 1 | yes | characteristic |
| 214 | D8 | — | 2 | 2 | no | — |
| 215 | D8 | — | 2 | 2 | no | — |
| 216 | D8 | — | 4 | 1 | no | — |
| 217 | D8 | — | 4 | 1 | no | — |
| 218 | M16 | — | 4 | 2 | no | — |
| 219 | M16 | — | 4 | 2 | no | — |
| 220 | C2×C8 | — | 2 | 1 | no | — |
| 221 | C2×C8 | — | 2 | 1 | no | — |
| 222 | C2×C8 | — | 2 | 1 | no | — |
| 223 | C2×C8 | — | 2 | 1 | no | — |
| 224 | C2×C8 | — | 2 | 1 | no | — |
| 225 | C2×C8 | — | 2 | 1 | no | — |
| 226 | C2×C8 | — | 2 | 1 | no | — |
| 227 | C2×C8 | — | 4 | 2 | no | — |
| 228 | C2×C8 | C4×D4 | 1 | 1 | yes | characteristic |
| 229 | C2×C8 | C4×D4 | 1 | 1 | yes | characteristic |
| 230 | C2×C8 | #137 | 1 | 2 | yes | — |
| 231 | C2×C8 | C23×C4 | 1 | 1 | yes | characteristic |
| 232 | C2×C8 | C2×#41 | 1 | 1 | yes | characteristic |
| 233 | C2×C8 | H(5,𝔽2) | 1 | 1 | yes | characteristic |
| 234 | C2×C8 | 2−1+4 | 1 | 1 | yes | characteristic |
| 235 | C2×C8 | 2−1+4 | 1 | 1 | yes | characteristic |
| 236 | C2×C8 | 2−1+4 | 1 | 1 | yes | characteristic |
| 237 | C4⋊C4 | — | 2 | 2 | no | — |
| 238 | C4⋊C4 | — | 2 | 2 | no | — |
| 239 | C4⋊C4 | — | 2 | 2 | no | — |
| 240 | C4⋊C4 | — | 4 | 1 | no | — |
| 241 | C4⋊C4 | — | 4 | 2 | no | — |
| 242 | C4⋊C4 | — | 4 | 2 | no | — |
| 243 | C4⋊C4 | — | 4 | 1 | no | — |
| 244 | C4⋊C4 | — | 4 | 1 | no | — |
| 245 | C4⋊C4 | — | 4 | 1 | no | — |
| 246 | C4⋊C4 | — | 4 | 1 | no | — |
| 247 | C4⋊C4 | — | 4 | 1 | no | — |
| 248 | C4⋊C4 | — | 4 | 1 | no | — |
| 249 | C4⋊C4 | — | 16 | 1 | no | — |
| 250 | C4⋊C4 | — | 16 | 1 | no | — |
| 251 | C22⋊C4 | — | 4 | 2 | no | — |
| 252 | C22⋊C4 | — | 4 | 2 | no | — |
| 253 | C22⋊C4 | — | 4 | 2 | no | — |
| 254 | C22⋊C4 | — | 16 | 1 | no | — |
| 255 | C22⋊C4 | — | 16 | 1 | no | — |
| 256 | C22⋊C4 | — | 16 | 1 | no | — |
| 257 | C22⋊C4 | — | 16 | 1 | no | — |
| 258 | C42 | — | 2 | 1 | no | — |
| 259 | C42 | — | 2 | 1 | no | — |
| 260 | C42 | — | 2 | 1 | no | — |
| 261 | C42 | — | 2 | 1 | no | — |
| 262 | C42 | — | 4 | 2 | no | — |
| 263 | C42 | — | 16 | 1 | no | — |
| 264 | C42 | C4×D4 | 1 | 1 | yes | characteristic |
| 265 | C42 | C4×D4 | 1 | 1 | yes | characteristic |
| 266 | C42 | AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 267 | C42 | AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 268 | C16 | — | 2 | 4 | no | — |
| 269 | C16 | — | 4 | 2 | no | — |
| 270 | C23 | — | 4 | 2 | no | — |
| 271 | C23 | — | 8 | 1 | no | — |
| 272 | C23 | — | 8 | 1 | no | — |
| 273 | C23 | — | 8 | 1 | no | — |
| 274 | C23 | — | 8 | 1 | no | — |
| 275 | C23 | — | 8 | 1 | no | — |
| 276 | C23 | — | 8 | 1 | no | — |
| 277 | C23 | C2×AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 278 | Q8 | — | 16 | 1 | no | — |
| 279 | Q8 | — | 16 | 1 | no | — |
| 280 | D4 | — | 4 | 2 | no | — |
| 281 | D4 | — | 4 | 2 | no | — |
| 282 | D4 | — | 8 | 1 | no | — |
| 283 | D4 | — | 8 | 1 | no | — |
| 284 | C2×C4 | — | 4 | 1 | no | — |
| 285 | C2×C4 | — | 4 | 1 | no | — |
| 286 | C2×C4 | — | 4 | 1 | no | — |
| 287 | C2×C4 | — | 4 | 1 | no | — |
| 288 | C2×C4 | — | 4 | 1 | no | — |
| 289 | C2×C4 | — | 4 | 1 | no | — |
| 290 | C2×C4 | — | 4 | 2 | no | — |
| 291 | C2×C4 | — | 4 | 2 | no | — |
| 292 | C2×C4 | — | 4 | 2 | no | — |
| 293 | C2×C4 | — | 4 | 1 | no | — |
| 294 | C2×C4 | — | 4 | 1 | no | — |
| 295 | C2×C4 | — | 8 | 1 | no | — |
| 296 | C2×C4 | — | 8 | 1 | no | — |
| 297 | C2×C4 | — | 8 | 1 | no | — |
| 298 | C2×C4 | — | 8 | 1 | no | — |
| 299 | C2×C4 | — | 8 | 1 | no | — |
| 300 | C2×C4 | — | 8 | 1 | no | — |
| 301 | C2×C4 | — | 8 | 1 | no | — |
| 302 | C2×C4 | — | 8 | 1 | no | — |
| 303 | C2×C4 | — | 16 | 2 | no | — |
| 304 | C2×C4 | — | 16 | 2 | no | — |
| 305 | C2×C4 | #442 | 1 | 1 | yes | characteristic |
| 306 | C2×C4 | #442 | 1 | 1 | yes | characteristic |
| 307 | C2×C4 | #442 | 1 | 1 | yes | characteristic |
| 308 | C2×C4 | #442 | 1 | 1 | yes | characteristic |
| 309 | C2×C4 | C2×C4×D4 | 1 | 1 | yes | characteristic |
| 310 | C2×C4 | #536 | 1 | 1 | yes | characteristic |
| 311 | C2×C4 | #537 | 1 | 1 | yes | characteristic |
| 312 | C2×C4 | C2×AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 313 | C2×C4 | C2×#137 | 1 | 1 | yes | characteristic |
| 314 | C2×C4 | #575 | 1 | 1 | yes | characteristic |
| 315 | C8 | — | 2 | 1 | no | — |
| 316 | C8 | — | 2 | 1 | no | — |
| 317 | C8 | — | 2 | 2 | no | — |
| 318 | C8 | — | 4 | 1 | no | — |
| 319 | C8 | — | 8 | 2 | no | — |
| 320 | C8 | #519 | 1 | 1 | yes | characteristic |
| 321 | C8 | #520 | 1 | 1 | yes | characteristic |
| 322 | C8 | #541 | 1 | 1 | yes | characteristic |
| 323 | C8 | #542 | 1 | 1 | yes | characteristic |
| 324 | C22 | — | 2 | 1 | no | — |
| 325 | C22 | — | 2 | 1 | no | — |
| 326 | C22 | — | 8 | 2 | no | — |
| 327 | C22 | — | 8 | 2 | no | — |
| 328 | C22 | — | 8 | 2 | no | — |
| 329 | C22 | — | 16 | 1 | no | — |
| 330 | C22 | — | 16 | 1 | no | — |
| 331 | C22 | — | 16 | 1 | no | — |
| 332 | C22 | — | 16 | 1 | no | — |
| 333 | C22 | C2×#442 | 1 | 1 | yes | characteristic |
| 334 | C22 | #3235 | 1 | 1 | yes | characteristic |
| 335 | C22 | #3254 | 1 | 1 | yes | characteristic |
| 336 | C4 | — | 2 | 1 | no | — |
| 337 | C4 | — | 2 | 1 | no | — |
| 338 | C4 | — | 2 | 1 | no | — |
| 339 | C4 | — | 2 | 1 | no | — |
| 340 | C4 | — | 8 | 1 | no | — |
| 341 | C4 | — | 8 | 1 | no | — |
| 342 | C4 | — | 8 | 2 | no | — |
| 343 | C4 | — | 8 | 2 | no | — |
| 344 | C4 | — | 8 | 2 | no | — |
| 345 | C4 | — | 16 | 1 | no | — |
| 346 | C4 | — | 16 | 1 | no | — |
| 347 | C4 | #2323 | 1 | 1 | yes | characteristic |
| 348 | C4 | C4×#137 | 1 | 1 | yes | characteristic |
| 349 | C4 | #3239 | 1 | 1 | yes | characteristic |
| 350 | C4 | #3251 | 1 | 1 | yes | characteristic |
| 351 | C2 | — | 2 | 1 | no | — |
| 352 | C2 | — | 2 | 1 | no | — |
| 353 | C2 | — | 16 | 2 | no | — |
| 354 | C2 | #22116 | 1 | 1 | yes | characteristic |
| 355 | C2 | #33469 | 1 | 1 | yes | characteristic |
| 356 | C2 | #33471 | 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