← #314678
Subgroups — #314678
Order 512.
676 conjugacy classes of subgroups.
The subgroup lattice has 346 nodes — too large to display as a diagram.
Conjugacy classes of subgroups
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|
| 1 | #27681 | C2 | 1 | 2 | yes | maximal |
| 2 | C8×C22⋊Q8 | C2 | 1 | 1 | yes | maximal, characteristic |
| 3 | C2×#1845 | C2 | 1 | 1 | yes | maximal, characteristic |
| 4 | #10650 | C2 | 1 | 2 | yes | maximal, complemented |
| 5 | #10618 | C2 | 1 | 2 | yes | maximal, complemented |
| 6 | #9614 | C2 | 1 | 2 | yes | maximal, complemented |
| 7 | #8725 | C2 | 1 | 2 | yes | maximal |
| 8 | #8645 | C2 | 1 | 2 | yes | maximal, complemented |
| 9 | #8596 | C2 | 1 | 1 | yes | maximal, characteristic |
| 10 | C2×C8×Q8 | C22 | 1 | 1 | yes | characteristic |
| 11 | C22×#107 | — | 2 | 1 | no | — |
| 12 | C22×#107 | — | 2 | 1 | no | — |
| 13 | C22×C4×C8 | C22 | 1 | 1 | yes | characteristic |
| 14 | C4×C22⋊Q8 | C22 | 1 | 1 | yes | characteristic |
| 15 | C2×#384 | C22 | 1 | 2 | yes | — |
| 16 | #2100 | — | 2 | 2 | no | — |
| 17 | #2095 | — | 2 | 2 | no | — |
| 18 | #1984 | C22 | 1 | 1 | yes | characteristic |
| 19 | #1947 | C22 | 1 | 4 | yes | — |
| 20 | #1939 | C22 | 1 | 1 | yes | characteristic |
| 21 | #1916 | — | 2 | 1 | no | — |
| 22 | #1872 | — | 2 | 2 | no | — |
| 23 | #1852 | — | 2 | 2 | no | — |
| 24 | #1850 | — | 2 | 1 | no | — |
| 25 | #1845 | — | 2 | 1 | no | — |
| 26 | #1845 | — | 2 | 1 | no | — |
| 27 | #1845 | C22 | 1 | 2 | yes | — |
| 28 | #1845 | C22 | 1 | 2 | yes | — |
| 29 | #1803 | C22 | 1 | 4 | yes | — |
| 30 | #1797 | C22 | 1 | 1 | yes | characteristic |
| 31 | #1797 | C22 | 1 | 2 | yes | — |
| 32 | C8×C4⋊C4 | — | 2 | 1 | no | — |
| 33 | C8×C4⋊C4 | C22 | 1 | 1 | yes | characteristic |
| 34 | C8×C22⋊C4 | — | 2 | 1 | no | — |
| 35 | C2×#335 | C22 | 1 | 2 | yes | — |
| 36 | #1296 | C22 | 1 | 4 | yes | — |
| 37 | #1296 | C22 | 1 | 4 | yes | — |
| 38 | #1277 | C22 | 1 | 2 | yes | — |
| 39 | C23×C8 | D4 | 1 | 1 | yes | characteristic |
| 40 | C23×C8 | D4 | 1 | 1 | yes | characteristic |
| 41 | C2×C22⋊Q8 | D4 | 1 | 1 | yes | characteristic |
| 42 | C2×C4×Q8 | C23 | 1 | 1 | yes | characteristic |
| 43 | C22×C4⋊C4 | — | 2 | 2 | no | — |
| 44 | C22×C4⋊C4 | — | 2 | 2 | no | — |
| 45 | C22×C4⋊C4 | — | 2 | 2 | no | — |
| 46 | C22×C42 | C23 | 1 | 1 | yes | characteristic |
| 47 | C8×Q8 | — | 2 | 4 | no | — |
| 48 | C2×#107 | — | 2 | 2 | no | — |
| 49 | C2×#107 | — | 2 | 2 | no | — |
| 50 | C2×#107 | — | 2 | 2 | no | — |
| 51 | C2×#107 | — | 2 | 2 | no | — |
| 52 | C2×#107 | — | 2 | 4 | no | — |
| 53 | C2×#107 | — | 4 | 4 | no | — |
| 54 | C2×#107 | — | 4 | 4 | no | — |
| 55 | C2×C4⋊C8 | — | 2 | 1 | no | — |
| 56 | C2×C4⋊C8 | — | 2 | 1 | no | — |
| 57 | C2×C4⋊C8 | C23 | 1 | 4 | yes | — |
| 58 | C2×C4⋊C8 | C23 | 1 | 1 | yes | characteristic |
| 59 | C2×C4⋊C8 | C23 | 1 | 1 | yes | characteristic |
| 60 | C2×#103 | — | 2 | 4 | no | — |
| 61 | C2×C22⋊C8 | — | 2 | 1 | no | — |
| 62 | C2×C22⋊C8 | — | 2 | 2 | no | — |
| 63 | C2×C4×C8 | — | 2 | 4 | no | — |
| 64 | C2×C4×C8 | — | 2 | 1 | no | — |
| 65 | C2×C4×C8 | — | 2 | 1 | no | — |
| 66 | C2×C4×C8 | D4 | 1 | 1 | yes | characteristic |
| 67 | C2×C4×C8 | D4 | 1 | 1 | yes | characteristic |
| 68 | C2×C4×C8 | C23 | 1 | 1 | yes | characteristic |
| 69 | C2×C4×C8 | C23 | 1 | 1 | yes | characteristic |
| 70 | #391 | D4 | 1 | 1 | yes | characteristic |
| 71 | #389 | D4 | 1 | 1 | yes | characteristic |
| 72 | #387 | — | 2 | 1 | no | — |
| 73 | #385 | — | 2 | 1 | no | — |
| 74 | #384 | — | 2 | 2 | no | — |
| 75 | #384 | — | 2 | 2 | no | — |
| 76 | #384 | — | 2 | 2 | no | — |
| 77 | #384 | C23 | 1 | 4 | yes | — |
| 78 | #380 | D4 | 1 | 1 | yes | characteristic |
| 79 | C4×C4⋊C4 | — | 2 | 1 | no | — |
| 80 | C4×C4⋊C4 | C23 | 1 | 1 | yes | characteristic |
| 81 | C4×C22⋊C4 | — | 2 | 1 | no | — |
| 82 | #340 | — | 2 | 4 | no | — |
| 83 | #340 | — | 2 | 4 | no | — |
| 84 | #336 | — | 2 | 1 | no | — |
| 85 | #336 | — | 2 | 1 | no | — |
| 86 | #336 | — | 2 | 1 | no | — |
| 87 | #336 | — | 2 | 1 | no | — |
| 88 | #336 | — | 2 | 2 | no | — |
| 89 | #336 | — | 2 | 1 | no | — |
| 90 | #335 | — | 2 | 4 | no | — |
| 91 | C22×Q8 | C2×D4 | 1 | 1 | yes | characteristic |
| 92 | C23×C4 | — | 4 | 2 | no | — |
| 93 | C23×C4 | C2×D4 | 1 | 1 | yes | characteristic |
| 94 | C23×C4 | C2×D4 | 1 | 1 | yes | characteristic |
| 95 | C23×C4 | #41 | 1 | 1 | yes | characteristic |
| 96 | C22×C8 | — | 2 | 2 | no | — |
| 97 | C22×C8 | — | 2 | 2 | no | — |
| 98 | C22×C8 | — | 2 | 2 | no | — |
| 99 | C22×C8 | — | 2 | 2 | no | — |
| 100 | C22×C8 | — | 2 | 2 | no | — |
| 101 | C22×C8 | — | 2 | 1 | no | — |
| 102 | C22×C8 | — | 2 | 1 | no | — |
| 103 | C22×C8 | — | 2 | 4 | no | — |
| 104 | C22×C8 | Q16 | 1 | 4 | yes | — |
| 105 | C22×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 106 | C22×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 107 | C22×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 108 | C22×C8 | C2×D4 | 1 | 1 | yes | characteristic |
| 109 | C22⋊Q8 | — | 2 | 2 | no | — |
| 110 | C22⋊Q8 | Q16 | 1 | 4 | yes | — |
| 111 | C4×Q8 | — | 2 | 2 | no | — |
| 112 | C4×Q8 | — | 2 | 2 | no | — |
| 113 | C2×C4⋊C4 | — | 2 | 1 | no | — |
| 114 | C2×C4⋊C4 | — | 2 | 1 | no | — |
| 115 | C2×C4⋊C4 | — | 2 | 1 | no | — |
| 116 | C2×C4⋊C4 | — | 2 | 4 | no | — |
| 117 | C2×C4⋊C4 | — | 2 | 4 | no | — |
| 118 | C2×C4⋊C4 | — | 2 | 4 | no | — |
| 119 | C2×C4⋊C4 | — | 4 | 4 | no | — |
| 120 | C2×C4⋊C4 | — | 4 | 4 | no | — |
| 121 | C2×C4⋊C4 | — | 4 | 2 | no | — |
| 122 | C2×C4⋊C4 | — | 4 | 2 | no | — |
| 123 | C2×C4⋊C4 | — | 4 | 2 | no | — |
| 124 | C2×C4⋊C4 | — | 8 | 4 | no | — |
| 125 | C2×C4⋊C4 | — | 8 | 4 | no | — |
| 126 | C2×C4⋊C4 | C2×D4 | 1 | 1 | yes | characteristic |
| 127 | C2×C4⋊C4 | C2×D4 | 1 | 1 | yes | characteristic |
| 128 | C2×C4⋊C4 | C2×D4 | 1 | 1 | yes | characteristic |
| 129 | C2×C22⋊C4 | — | 2 | 1 | no | — |
| 130 | C2×C22⋊C4 | — | 2 | 1 | no | — |
| 131 | C2×C42 | — | 2 | 2 | no | — |
| 132 | C2×C42 | — | 2 | 2 | no | — |
| 133 | C2×C42 | — | 2 | 1 | no | — |
| 134 | C2×C42 | — | 2 | 1 | no | — |
| 135 | C2×C42 | C2×D4 | 1 | 1 | yes | characteristic |
| 136 | C2×C42 | C2×D4 | 1 | 1 | yes | characteristic |
| 137 | C2×C42 | #41 | 1 | 1 | yes | characteristic |
| 138 | C2×C42 | C24 | 1 | 1 | yes | characteristic |
| 139 | #107 | — | 4 | 4 | no | — |
| 140 | #107 | — | 4 | 4 | no | — |
| 141 | #107 | — | 4 | 4 | no | — |
| 142 | #107 | — | 4 | 4 | no | — |
| 143 | #107 | — | 8 | 4 | no | — |
| 144 | C4⋊C8 | — | 2 | 4 | no | — |
| 145 | C4⋊C8 | — | 2 | 2 | no | — |
| 146 | C4⋊C8 | — | 2 | 2 | no | — |
| 147 | C4⋊C8 | — | 2 | 4 | no | — |
| 148 | C4⋊C8 | — | 4 | 2 | no | — |
| 149 | C4⋊C8 | — | 4 | 2 | no | — |
| 150 | #103 | — | 8 | 4 | no | — |
| 151 | C22⋊C8 | — | 4 | 4 | no | — |
| 152 | C22⋊C8 | — | 4 | 2 | no | — |
| 153 | C4×C8 | — | 2 | 2 | no | — |
| 154 | C4×C8 | — | 2 | 2 | no | — |
| 155 | C4×C8 | — | 2 | 2 | no | — |
| 156 | C4×C8 | — | 4 | 2 | no | — |
| 157 | C4×C8 | — | 4 | 2 | no | — |
| 158 | C4×C8 | #41 | 1 | 4 | yes | — |
| 159 | #95 | — | 2 | 1 | no | — |
| 160 | #95 | — | 2 | 1 | no | — |
| 161 | #95 | — | 2 | 1 | no | — |
| 162 | #95 | — | 2 | 1 | no | — |
| 163 | #95 | — | 2 | 1 | no | — |
| 164 | C24 | #121 | 1 | 1 | yes | characteristic |
| 165 | C2×Q8 | — | 2 | 1 | no | — |
| 166 | C2×Q8 | — | 2 | 2 | no | — |
| 167 | C2×Q8 | — | 2 | 2 | no | — |
| 168 | C2×Q8 | C2×Q16 | 1 | 2 | yes | — |
| 169 | C22×C4 | — | 2 | 2 | no | — |
| 170 | C22×C4 | — | 2 | 1 | no | — |
| 171 | C22×C4 | — | 2 | 1 | no | — |
| 172 | C22×C4 | — | 2 | 2 | no | — |
| 173 | C22×C4 | — | 2 | 2 | no | — |
| 174 | C22×C4 | — | 2 | 1 | no | — |
| 175 | C22×C4 | — | 2 | 1 | no | — |
| 176 | C22×C4 | — | 2 | 2 | no | — |
| 177 | C22×C4 | — | 2 | 2 | no | — |
| 178 | C22×C4 | — | 2 | 1 | no | — |
| 179 | C22×C4 | — | 2 | 1 | no | — |
| 180 | C22×C4 | — | 2 | 1 | no | — |
| 181 | C22×C4 | — | 2 | 1 | no | — |
| 182 | C22×C4 | — | 4 | 4 | no | — |
| 183 | C22×C4 | — | 8 | 4 | no | — |
| 184 | C22×C4 | — | 8 | 4 | no | — |
| 185 | C22×C4 | — | 8 | 4 | no | — |
| 186 | C22×C4 | #121 | 1 | 1 | yes | characteristic |
| 187 | C22×C4 | #121 | 1 | 1 | yes | characteristic |
| 188 | C22×C4 | #121 | 1 | 1 | yes | characteristic |
| 189 | C22×C4 | C2×Q16 | 1 | 2 | yes | — |
| 190 | C22×C4 | C2×Q16 | 1 | 2 | yes | — |
| 191 | C22×C4 | #135 | 1 | 2 | yes | — |
| 192 | C22×C4 | #137 | 1 | 2 | yes | — |
| 193 | C22×C4 | C22×D4 | 1 | 1 | yes | characteristic |
| 194 | C22×C4 | C22×D4 | 1 | 1 | yes | characteristic |
| 195 | C22×C4 | C2×#41 | 1 | 1 | yes | characteristic |
| 196 | C2×C8 | — | 2 | 8 | no | — |
| 197 | C2×C8 | — | 2 | 1 | no | — |
| 198 | C2×C8 | — | 2 | 1 | no | — |
| 199 | C2×C8 | — | 2 | 1 | no | — |
| 200 | C2×C8 | — | 2 | 1 | no | — |
| 201 | C2×C8 | — | 2 | 1 | no | — |
| 202 | C2×C8 | — | 2 | 1 | no | — |
| 203 | C2×C8 | — | 2 | 8 | no | — |
| 204 | C2×C8 | — | 4 | 1 | no | — |
| 205 | C2×C8 | — | 4 | 1 | no | — |
| 206 | C2×C8 | — | 4 | 4 | no | — |
| 207 | C2×C8 | — | 4 | 4 | no | — |
| 208 | C2×C8 | — | 4 | 1 | no | — |
| 209 | C2×C8 | — | 4 | 1 | no | — |
| 210 | C2×C8 | — | 4 | 1 | no | — |
| 211 | C2×C8 | — | 4 | 1 | no | — |
| 212 | C2×C8 | — | 4 | 4 | no | — |
| 213 | C2×C8 | #123 | 1 | 2 | yes | — |
| 214 | C2×C8 | #123 | 1 | 2 | yes | — |
| 215 | C2×C8 | C2×Q16 | 1 | 2 | yes | — |
| 216 | C2×C8 | C2×Q16 | 1 | 2 | yes | — |
| 217 | C2×C8 | AGL(1,ℤ/8) | 1 | 2 | yes | — |
| 218 | C2×C8 | AGL(1,ℤ/8) | 1 | 2 | yes | — |
| 219 | C4⋊C4 | — | 2 | 1 | no | — |
| 220 | C4⋊C4 | — | 2 | 4 | no | — |
| 221 | C4⋊C4 | — | 2 | 2 | no | — |
| 222 | C4⋊C4 | — | 2 | 2 | no | — |
| 223 | C4⋊C4 | — | 4 | 2 | no | — |
| 224 | C4⋊C4 | — | 4 | 2 | no | — |
| 225 | C4⋊C4 | — | 4 | 4 | no | — |
| 226 | C4⋊C4 | — | 4 | 4 | no | — |
| 227 | C4⋊C4 | — | 4 | 4 | no | — |
| 228 | C4⋊C4 | — | 4 | 4 | no | — |
| 229 | C4⋊C4 | — | 8 | 4 | no | — |
| 230 | C4⋊C4 | — | 8 | 4 | no | — |
| 231 | C4⋊C4 | — | 8 | 4 | no | — |
| 232 | C4⋊C4 | — | 8 | 4 | no | — |
| 233 | C4⋊C4 | C2×Q16 | 1 | 2 | yes | — |
| 234 | C22⋊C4 | — | 2 | 4 | no | — |
| 235 | C22⋊C4 | — | 4 | 2 | no | — |
| 236 | C42 | — | 2 | 1 | no | — |
| 237 | C42 | — | 2 | 1 | no | — |
| 238 | C42 | — | 2 | 2 | no | — |
| 239 | C42 | — | 2 | 2 | no | — |
| 240 | C42 | — | 4 | 1 | no | — |
| 241 | C42 | — | 4 | 1 | no | — |
| 242 | C42 | — | 4 | 1 | no | — |
| 243 | C42 | — | 4 | 1 | no | — |
| 244 | C42 | C2×#41 | 1 | 2 | yes | — |
| 245 | C42 | 2−1+4 | 1 | 2 | yes | — |
| 246 | C23 | — | 2 | 1 | no | — |
| 247 | C23 | — | 2 | 1 | no | — |
| 248 | C23 | — | 2 | 1 | no | — |
| 249 | C23 | — | 2 | 1 | no | — |
| 250 | C23 | #462 | 1 | 2 | yes | — |
| 251 | C23 | #467 | 1 | 2 | yes | — |
| 252 | C23 | #472 | 1 | 2 | yes | — |
| 253 | C23 | C2×#121 | 1 | 1 | yes | characteristic |
| 254 | Q8 | — | 2 | 4 | no | — |
| 255 | Q8 | — | 4 | 2 | no | — |
| 256 | C2×C4 | — | 2 | 8 | no | — |
| 257 | C2×C4 | — | 2 | 1 | no | — |
| 258 | C2×C4 | — | 2 | 1 | no | — |
| 259 | C2×C4 | — | 2 | 1 | no | — |
| 260 | C2×C4 | — | 2 | 1 | no | — |
| 261 | C2×C4 | — | 2 | 1 | no | — |
| 262 | C2×C4 | — | 2 | 1 | no | — |
| 263 | C2×C4 | — | 2 | 1 | no | — |
| 264 | C2×C4 | — | 2 | 1 | no | — |
| 265 | C2×C4 | — | 2 | 4 | no | — |
| 266 | C2×C4 | — | 2 | 4 | no | — |
| 267 | C2×C4 | — | 2 | 2 | no | — |
| 268 | C2×C4 | — | 2 | 2 | no | — |
| 269 | C2×C4 | — | 2 | 2 | no | — |
| 270 | C2×C4 | — | 2 | 2 | no | — |
| 271 | C2×C4 | — | 2 | 2 | no | — |
| 272 | C2×C4 | — | 2 | 2 | no | — |
| 273 | C2×C4 | — | 4 | 1 | no | — |
| 274 | C2×C4 | — | 4 | 1 | no | — |
| 275 | C2×C4 | — | 4 | 1 | no | — |
| 276 | C2×C4 | — | 4 | 1 | no | — |
| 277 | C2×C4 | — | 4 | 1 | no | — |
| 278 | C2×C4 | — | 4 | 1 | no | — |
| 279 | C2×C4 | — | 4 | 1 | no | — |
| 280 | C2×C4 | — | 4 | 1 | no | — |
| 281 | C2×C4 | — | 4 | 1 | no | — |
| 282 | C2×C4 | — | 4 | 1 | no | — |
| 283 | C2×C4 | — | 8 | 4 | no | — |
| 284 | C2×C4 | — | 8 | 4 | no | — |
| 285 | C2×C4 | — | 8 | 4 | no | — |
| 286 | C2×C4 | — | 16 | 8 | no | — |
| 287 | C2×C4 | #462 | 1 | 2 | yes | — |
| 288 | C2×C4 | #467 | 1 | 2 | yes | — |
| 289 | C2×C4 | #473 | 1 | 2 | yes | — |
| 290 | C2×C4 | C2×#123 | 1 | 1 | yes | characteristic |
| 291 | C2×C4 | #536 | 1 | 1 | yes | characteristic |
| 292 | C2×C4 | #547 | 1 | 2 | yes | — |
| 293 | C2×C4 | #552 | 1 | 2 | yes | — |
| 294 | C2×C4 | C22×Q16 | 1 | 1 | yes | characteristic |
| 295 | C2×C4 | C22×Q16 | 1 | 1 | yes | characteristic |
| 296 | C2×C4 | C2×#135 | 1 | 1 | yes | characteristic |
| 297 | C2×C4 | C2×AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 298 | C2×C4 | C2×AGL(1,ℤ/8) | 1 | 1 | yes | characteristic |
| 299 | C2×C4 | C2×#137 | 1 | 1 | yes | characteristic |
| 300 | C2×C4 | #576 | 1 | 2 | yes | — |
| 301 | C8 | — | 2 | 2 | no | — |
| 302 | C8 | — | 2 | 2 | no | — |
| 303 | C8 | — | 2 | 2 | no | — |
| 304 | C8 | — | 8 | 4 | no | — |
| 305 | C8 | — | 8 | 1 | no | — |
| 306 | C8 | — | 8 | 1 | no | — |
| 307 | C8 | #484 | 1 | 4 | yes | — |
| 308 | C22 | — | 2 | 2 | no | — |
| 309 | C22 | — | 2 | 2 | no | — |
| 310 | C22 | — | 2 | 2 | no | — |
| 311 | C22 | — | 2 | 2 | no | — |
| 312 | C22 | — | 2 | 2 | no | — |
| 313 | C22 | — | 2 | 2 | no | — |
| 314 | C22 | #1676 | 1 | 4 | yes | — |
| 315 | C22 | #2486 | 1 | 1 | yes | characteristic |
| 316 | C22 | C2×#462 | 1 | 1 | yes | characteristic |
| 317 | C22 | #3038 | 1 | 1 | yes | characteristic |
| 318 | C22 | C2×#467 | 1 | 1 | yes | characteristic |
| 319 | C22 | #3058 | 1 | 1 | yes | characteristic |
| 320 | C22 | C2×#472 | 1 | 1 | yes | characteristic |
| 321 | C22 | C2×#473 | 1 | 1 | yes | characteristic |
| 322 | C4 | — | 2 | 2 | no | — |
| 323 | C4 | — | 2 | 2 | no | — |
| 324 | C4 | — | 2 | 2 | no | — |
| 325 | C4 | — | 2 | 2 | no | — |
| 326 | C4 | — | 4 | 2 | no | — |
| 327 | C4 | — | 4 | 2 | no | — |
| 328 | C4 | — | 8 | 1 | no | — |
| 329 | C4 | — | 8 | 1 | no | — |
| 330 | C4 | — | 16 | 4 | no | — |
| 331 | C4 | C2×#484 | 1 | 1 | yes | characteristic |
| 332 | C4 | #3092 | 1 | 1 | yes | characteristic |
| 333 | C4 | #3230 | 1 | 1 | yes | characteristic |
| 334 | C4 | #3239 | 1 | 1 | yes | characteristic |
| 335 | C4 | #3338 | 1 | 2 | yes | — |
| 336 | C4 | #3339 | 1 | 2 | yes | — |
| 337 | C2 | — | 2 | 4 | no | — |
| 338 | C2 | C2×#1676 | 1 | 1 | yes | characteristic |
| 339 | C2 | #19208 | 1 | 1 | yes | characteristic |
| 340 | C2 | #19268 | 1 | 1 | yes | characteristic |
| 341 | C2 | #19353 | 1 | 1 | yes | characteristic |
| 342 | C2 | #27648 | 1 | 1 | yes | characteristic |
| 343 | C2 | #27662 | 1 | 1 | yes | characteristic |
| 344 | C2 | #27675 | 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