← #13139421
Subgroups — #13139421
Order 1728.
638 conjugacy classes of subgroups.
The subgroup lattice has 322 nodes — too large to display as a diagram.
Conjugacy classes of subgroups
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|
| 1 | C22×C4×D3×C9 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | C2×#88532 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 3 | C2×C3×#3667 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 4 | (C2×D3)⋊(C9⋊C8) | C2 | 1 | 4 | yes | maximal, complemented |
| 5 | #10591069 | — | 3 | 1 | no | maximal |
| 6 | #10588887 | — | 3 | 1 | no | maximal |
| 7 | C23×D3×C9 | C4 | 1 | 1 | yes | characteristic |
| 8 | C22×C3×C4×C9 | C22 | 1 | 1 | yes | characteristic |
| 9 | C22×C9×Dic3 | C4 | 1 | 1 | yes | characteristic |
| 10 | C2×C4×D3×C9 | — | 2 | 2 | no | — |
| 11 | C2×C4×D3×C9 | — | 2 | 2 | no | — |
| 12 | C2×C4×D3×C9 | C4 | 1 | 2 | yes | — |
| 13 | C2×C4×D3×C9 | C22 | 1 | 2 | yes | — |
| 14 | #88532 | — | 2 | 2 | no | — |
| 15 | C2×C3⋊(C9⋊C8) | C22 | 1 | 2 | yes | complemented |
| 16 | C3×#3667 | — | 2 | 2 | no | — |
| 17 | C2×C3×C9⋊C8 | C22 | 1 | 2 | yes | complemented |
| 18 | C22×C3×C4×D3 | D3 | 1 | 1 | yes | characteristic |
| 19 | C2×#3748 | — | 3 | 1 | no | — |
| 20 | C2×C3×#208 | — | 3 | 1 | no | — |
| 21 | C23×C4×C9 | — | 3 | 1 | no | — |
| 22 | (C2×D3)⋊(C3⋊C8) | — | 3 | 4 | no | — |
| 23 | C2×#3667 | — | 3 | 1 | no | — |
| 24 | C2×#3667 | — | 6 | 1 | no | — |
| 25 | C2×#3667 | D3 | 1 | 1 | yes | characteristic, complemented |
| 26 | #63389 | — | 3 | 4 | no | — |
| 27 | C23×C3×C9 | C2×C4 | 1 | 1 | yes | characteristic |
| 28 | C22×D3×C9 | — | 2 | 2 | no | — |
| 29 | C22×D3×C9 | — | 2 | 4 | no | — |
| 30 | C22×D3×C9 | C2×C4 | 1 | 2 | yes | — |
| 31 | C2×C3×C4×C9 | C2×C4 | 1 | 1 | yes | characteristic |
| 32 | C2×C3×C4×C9 | D4 | 1 | 2 | yes | — |
| 33 | C2×C3×C4×C9 | D4 | 1 | 2 | yes | — |
| 34 | C2×C3×C4×C9 | C23 | 1 | 1 | yes | characteristic |
| 35 | C2×C9×Dic3 | — | 2 | 2 | no | — |
| 36 | C2×C9×Dic3 | C2×C4 | 1 | 2 | yes | — |
| 37 | C4×D3×C9 | — | 2 | 4 | no | — |
| 38 | C4×D3×C9 | — | 2 | 2 | no | — |
| 39 | C4×D3×C9 | — | 2 | 2 | no | — |
| 40 | C3⋊(C9⋊C8) | — | 2 | 2 | no | — |
| 41 | C3×C9⋊C8 | — | 2 | 2 | no | — |
| 42 | #5207 | — | 9 | 1 | no | — |
| 43 | #5126 | — | 9 | 1 | no | — |
| 44 | C23×C3×D3 | Dic3 | 1 | 1 | yes | characteristic |
| 45 | C22×C32×C4 | C2×D3 | 1 | 1 | yes | characteristic |
| 46 | C22×C3×Dic3 | Dic3 | 1 | 1 | yes | characteristic |
| 47 | C2×C3×C4×D3 | — | 2 | 2 | no | — |
| 48 | C2×C3×C4×D3 | — | 2 | 2 | no | — |
| 49 | C2×C3×C4×D3 | Dic3 | 1 | 2 | yes | — |
| 50 | C2×C3×C4×D3 | C2×D3 | 1 | 2 | yes | — |
| 51 | C24×C9 | — | 3 | 1 | no | — |
| 52 | #3748 | — | 6 | 2 | no | — |
| 53 | C2×C3⋊(C3⋊C8) | — | 3 | 2 | no | — |
| 54 | C3×#208 | — | 6 | 2 | no | — |
| 55 | C2×C3×C3⋊C8 | — | 3 | 2 | no | — |
| 56 | C22×C4×C9 | — | 2 | 1 | no | — |
| 57 | C22×C4×C9 | — | 3 | 1 | no | — |
| 58 | C22×C4×C9 | — | 3 | 2 | no | — |
| 59 | C22×C4×C9 | — | 3 | 2 | no | — |
| 60 | C22×C4×C9 | — | 6 | 2 | no | — |
| 61 | C22×C4×C9 | — | 6 | 2 | no | — |
| 62 | C22×C4×C9 | C2×D3 | 1 | 1 | yes | characteristic |
| 63 | #3667 | — | 2 | 2 | no | — |
| 64 | #3667 | — | 6 | 4 | no | — |
| 65 | #3667 | — | 6 | 2 | no | — |
| 66 | C2×C9⋊C8 | — | 3 | 2 | no | — |
| 67 | C2×C9⋊C8 | — | 6 | 2 | no | — |
| 68 | C2×C9⋊C8 | C2×D3 | 1 | 2 | yes | complemented |
| 69 | C22×C3×C9 | — | 2 | 2 | no | — |
| 70 | C22×C3×C9 | C22⋊C4 | 1 | 2 | yes | — |
| 71 | C22×C3×C9 | C22×C4 | 1 | 1 | yes | characteristic |
| 72 | C2×D3×C9 | — | 2 | 8 | no | — |
| 73 | C2×D3×C9 | — | 2 | 2 | no | — |
| 74 | C2×D3×C9 | — | 2 | 2 | no | — |
| 75 | C2×D3×C9 | M16 | 1 | 4 | yes | complemented |
| 76 | C3×C4×C9 | C22⋊C4 | 1 | 2 | yes | — |
| 77 | C3×C4×C9 | C2×D4 | 1 | 1 | yes | characteristic |
| 78 | C3×C4×C9 | C2×D4 | 1 | 1 | yes | characteristic |
| 79 | C9×Dic3 | — | 2 | 2 | no | — |
| 80 | C23×C3×C4 | — | 3 | 1 | no | — |
| 81 | C22×C4×D3 | D9 | 1 | 1 | yes | characteristic |
| 82 | C2×C3×M16 | — | 9 | 1 | no | — |
| 83 | C2×#208 | — | 3 | 1 | no | — |
| 84 | C2×#208 | — | 9 | 1 | no | — |
| 85 | C2×#208 | — | 9 | 1 | no | — |
| 86 | C2×#208 | — | 18 | 1 | no | — |
| 87 | #830 | — | 9 | 4 | no | — |
| 88 | (C2×D3)⋊C8 | — | 9 | 4 | no | — |
| 89 | C23×C32 | C2×Dic3 | 1 | 1 | yes | characteristic |
| 90 | C22×C3×D3 | — | 2 | 2 | no | — |
| 91 | C22×C3×D3 | — | 2 | 4 | no | — |
| 92 | C22×C3×D3 | C2×Dic3 | 1 | 2 | yes | — |
| 93 | C2×C32×C4 | C2×Dic3 | 1 | 1 | yes | characteristic |
| 94 | C2×C32×C4 | #67 | 1 | 2 | yes | — |
| 95 | C2×C32×C4 | #67 | 1 | 2 | yes | — |
| 96 | C2×C32×C4 | C22×D3 | 1 | 1 | yes | characteristic |
| 97 | C2×C3×Dic3 | — | 2 | 2 | no | — |
| 98 | C2×C3×Dic3 | C2×Dic3 | 1 | 2 | yes | — |
| 99 | C3×C4×D3 | — | 2 | 4 | no | — |
| 100 | C3×C4×D3 | — | 2 | 2 | no | — |
| 101 | C3×C4×D3 | — | 2 | 2 | no | — |
| 102 | C23×C9 | — | 2 | 1 | no | — |
| 103 | C23×C9 | — | 3 | 2 | no | — |
| 104 | C23×C9 | — | 6 | 4 | no | — |
| 105 | C23×C9 | — | 6 | 2 | no | — |
| 106 | C23×C9 | C4×D3 | 1 | 1 | yes | characteristic |
| 107 | C3⋊(C3⋊C8) | — | 6 | 2 | no | — |
| 108 | C3×C3⋊C8 | — | 6 | 2 | no | — |
| 109 | C2×C4×C9 | — | 2 | 1 | no | — |
| 110 | C2×C4×C9 | — | 2 | 2 | no | — |
| 111 | C2×C4×C9 | — | 2 | 2 | no | — |
| 112 | C2×C4×C9 | — | 2 | 1 | no | — |
| 113 | C2×C4×C9 | — | 3 | 2 | no | — |
| 114 | C2×C4×C9 | — | 6 | 2 | no | — |
| 115 | C2×C4×C9 | — | 6 | 4 | no | — |
| 116 | C2×C4×C9 | — | 6 | 2 | no | — |
| 117 | C2×C4×C9 | — | 6 | 2 | no | — |
| 118 | C2×C4×C9 | C4×D3 | 1 | 1 | yes | characteristic |
| 119 | C2×C4×C9 | D12 | 1 | 2 | yes | — |
| 120 | C2×C4×C9 | #67 | 1 | 2 | yes | — |
| 121 | C2×C4×C9 | C22×D3 | 1 | 1 | yes | characteristic |
| 122 | C9⋊C8 | — | 2 | 2 | no | — |
| 123 | C9⋊C8 | — | 6 | 4 | no | — |
| 124 | C9⋊C8 | — | 6 | 2 | no | — |
| 125 | #407 | — | 27 | 1 | no | Sylow |
| 126 | C2×C3×C9 | — | 2 | 2 | no | — |
| 127 | C2×C3×C9 | C2×C22⋊C4 | 1 | 1 | yes | characteristic |
| 128 | C2×C3×C9 | C2×M16 | 1 | 2 | yes | — |
| 129 | D3×C9 | — | 2 | 4 | no | — |
| 130 | C24×C3 | — | 3 | 1 | no | — |
| 131 | C23×D3 | Dic9 | 1 | 1 | yes | characteristic |
| 132 | C22×C3×C4 | — | 2 | 1 | no | — |
| 133 | C22×C3×C4 | — | 3 | 1 | no | — |
| 134 | C22×C3×C4 | — | 3 | 2 | no | — |
| 135 | C22×C3×C4 | — | 3 | 2 | no | — |
| 136 | C22×C3×C4 | — | 6 | 2 | no | — |
| 137 | C22×C3×C4 | — | 6 | 2 | no | — |
| 138 | C22×C3×C4 | C2×D9 | 1 | 1 | yes | characteristic |
| 139 | C22×C3×C4 | D32 | 1 | 1 | yes | characteristic |
| 140 | C22×Dic3 | Dic9 | 1 | 1 | yes | characteristic |
| 141 | C2×C4×D3 | — | 2 | 2 | no | — |
| 142 | C2×C4×D3 | — | 2 | 2 | no | — |
| 143 | C2×C4×D3 | Dic9 | 1 | 2 | yes | — |
| 144 | C2×C4×D3 | C2×D9 | 1 | 2 | yes | — |
| 145 | C3×M16 | — | 18 | 2 | no | — |
| 146 | C2×C3×C8 | — | 9 | 2 | no | — |
| 147 | #208 | — | 6 | 2 | no | — |
| 148 | #208 | — | 18 | 4 | no | — |
| 149 | #208 | — | 18 | 2 | no | — |
| 150 | #208 | — | 18 | 2 | no | — |
| 151 | C2×C3⋊C8 | — | 3 | 2 | no | — |
| 152 | C2×C3⋊C8 | — | 9 | 2 | no | — |
| 153 | C2×C3⋊C8 | — | 9 | 2 | no | — |
| 154 | C2×C3⋊C8 | — | 18 | 2 | no | — |
| 155 | C22×C32 | — | 2 | 2 | no | — |
| 156 | C22×C32 | #217 | 1 | 2 | yes | — |
| 157 | C22×C32 | C22×Dic3 | 1 | 1 | yes | characteristic |
| 158 | C2×C3×D3 | — | 2 | 8 | no | — |
| 159 | C2×C3×D3 | — | 2 | 2 | no | — |
| 160 | C2×C3×D3 | — | 2 | 2 | no | — |
| 161 | C2×C3×D3 | #208 | 1 | 4 | yes | — |
| 162 | C32×C4 | #217 | 1 | 2 | yes | — |
| 163 | C32×C4 | C2×#67 | 1 | 1 | yes | characteristic |
| 164 | C32×C4 | C2×#67 | 1 | 1 | yes | characteristic |
| 165 | C3×Dic3 | — | 2 | 2 | no | — |
| 166 | C22×C9 | — | 2 | 2 | no | — |
| 167 | C22×C9 | — | 2 | 2 | no | — |
| 168 | C22×C9 | — | 2 | 1 | no | — |
| 169 | C22×C9 | — | 3 | 4 | no | — |
| 170 | C22×C9 | — | 4 | 2 | no | — |
| 171 | C22×C9 | — | 6 | 8 | no | — |
| 172 | C22×C9 | — | 6 | 2 | no | — |
| 173 | C22×C9 | — | 6 | 2 | no | — |
| 174 | C22×C9 | (C2×D3)⋊C4 | 1 | 2 | yes | — |
| 175 | C22×C9 | C2×C4×D3 | 1 | 1 | yes | characteristic |
| 176 | C4×C9 | — | 2 | 2 | no | — |
| 177 | C4×C9 | — | 2 | 1 | no | — |
| 178 | C4×C9 | — | 2 | 1 | no | — |
| 179 | C4×C9 | — | 6 | 2 | no | — |
| 180 | C4×C9 | (C2×D3)⋊C4 | 1 | 2 | yes | — |
| 181 | C4×C9 | C2×D12 | 1 | 1 | yes | characteristic |
| 182 | C4×C9 | C2×#67 | 1 | 1 | yes | characteristic |
| 183 | C23×C4 | — | 3 | 1 | no | — |
| 184 | C2×M16 | — | 9 | 1 | no | — |
| 185 | C2×M16 | — | 27 | 1 | no | — |
| 186 | C22⋊C8 | — | 27 | 4 | no | — |
| 187 | C3×C9 | #407 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 188 | C23×C3 | — | 2 | 1 | no | — |
| 189 | C23×C3 | — | 3 | 2 | no | — |
| 190 | C23×C3 | — | 6 | 4 | no | — |
| 191 | C23×C3 | — | 6 | 2 | no | — |
| 192 | C23×C3 | C2×Dic9 | 1 | 1 | yes | characteristic |
| 193 | C23×C3 | D3×Dic3 | 1 | 1 | yes | characteristic |
| 194 | C22×D3 | — | 2 | 2 | no | — |
| 195 | C22×D3 | — | 2 | 4 | no | — |
| 196 | C22×D3 | C2×Dic9 | 1 | 2 | yes | — |
| 197 | C2×C3×C4 | — | 2 | 1 | no | — |
| 198 | C2×C3×C4 | — | 2 | 2 | no | — |
| 199 | C2×C3×C4 | — | 2 | 2 | no | — |
| 200 | C2×C3×C4 | — | 2 | 1 | no | — |
| 201 | C2×C3×C4 | — | 3 | 2 | no | — |
| 202 | C2×C3×C4 | — | 6 | 2 | no | — |
| 203 | C2×C3×C4 | — | 6 | 4 | no | — |
| 204 | C2×C3×C4 | — | 6 | 2 | no | — |
| 205 | C2×C3×C4 | — | 6 | 2 | no | — |
| 206 | C2×C3×C4 | C2×Dic9 | 1 | 1 | yes | characteristic |
| 207 | C2×C3×C4 | #611 | 1 | 2 | yes | — |
| 208 | C2×C3×C4 | #611 | 1 | 2 | yes | — |
| 209 | C2×C3×C4 | C22×D9 | 1 | 1 | yes | characteristic |
| 210 | C2×C3×C4 | D3×Dic3 | 1 | 1 | yes | characteristic |
| 211 | C2×C3×C4 | #625 | 1 | 2 | yes | — |
| 212 | C2×C3×C4 | #626 | 1 | 2 | yes | — |
| 213 | C2×C3×C4 | C2×D32 | 1 | 1 | yes | characteristic |
| 214 | C2×Dic3 | — | 2 | 2 | no | — |
| 215 | C2×Dic3 | C2×Dic9 | 1 | 2 | yes | — |
| 216 | C4×D3 | — | 2 | 4 | no | — |
| 217 | C4×D3 | — | 2 | 2 | no | — |
| 218 | C4×D3 | — | 2 | 2 | no | — |
| 219 | C3×C8 | — | 18 | 2 | no | — |
| 220 | C3⋊C8 | — | 6 | 2 | no | — |
| 221 | C3⋊C8 | — | 18 | 4 | no | — |
| 222 | C3⋊C8 | — | 18 | 2 | no | — |
| 223 | C3⋊C8 | — | 18 | 2 | no | — |
| 224 | C2×C32 | — | 2 | 2 | no | — |
| 225 | C2×C32 | C2×#208 | 1 | 2 | yes | — |
| 226 | C2×C32 | C2×#217 | 1 | 1 | yes | characteristic |
| 227 | C3×D3 | — | 2 | 4 | no | — |
| 228 | C2×C9 | — | 2 | 2 | no | — |
| 229 | C2×C9 | — | 2 | 2 | no | — |
| 230 | C2×C9 | — | 2 | 1 | no | — |
| 231 | C2×C9 | — | 4 | 2 | no | — |
| 232 | C2×C9 | — | 6 | 4 | no | — |
| 233 | C2×C9 | D3×M16 | 1 | 2 | yes | — |
| 234 | C2×C9 | C2×(C2×D3)⋊C4 | 1 | 1 | yes | characteristic |
| 235 | C24 | — | 3 | 1 | no | — |
| 236 | C22×C4 | — | 3 | 1 | no | — |
| 237 | C22×C4 | — | 3 | 2 | no | — |
| 238 | C22×C4 | — | 3 | 2 | no | — |
| 239 | C22×C4 | — | 6 | 2 | no | — |
| 240 | C22×C4 | — | 6 | 2 | no | — |
| 241 | C22×C4 | D3×D9 | 1 | 1 | yes | characteristic |
| 242 | M16 | — | 18 | 2 | no | — |
| 243 | M16 | — | 54 | 2 | no | — |
| 244 | C2×C8 | — | 9 | 2 | no | — |
| 245 | C2×C8 | — | 27 | 2 | no | — |
| 246 | C22×C3 | — | 2 | 2 | no | — |
| 247 | C22×C3 | — | 2 | 2 | no | — |
| 248 | C22×C3 | — | 2 | 1 | no | — |
| 249 | C22×C3 | — | 2 | 2 | no | — |
| 250 | C22×C3 | — | 3 | 4 | no | — |
| 251 | C22×C3 | — | 4 | 2 | no | — |
| 252 | C22×C3 | — | 6 | 8 | no | — |
| 253 | C22×C3 | — | 6 | 2 | no | — |
| 254 | C22×C3 | — | 6 | 2 | no | — |
| 255 | C22×C3 | #3676 | 1 | 2 | yes | — |
| 256 | C22×C3 | C22×Dic9 | 1 | 1 | yes | characteristic |
| 257 | C22×C3 | (C2×D3)⋊Dic3 | 1 | 2 | yes | — |
| 258 | C22×C3 | C2×D3×Dic3 | 1 | 1 | yes | characteristic |
| 259 | C2×D3 | — | 2 | 8 | no | — |
| 260 | C2×D3 | — | 2 | 2 | no | — |
| 261 | C2×D3 | — | 2 | 2 | no | — |
| 262 | C2×D3 | #3667 | 1 | 4 | yes | complemented |
| 263 | C3×C4 | — | 2 | 1 | no | — |
| 264 | C3×C4 | — | 2 | 1 | no | — |
| 265 | C3×C4 | — | 2 | 2 | no | — |
| 266 | C3×C4 | — | 6 | 2 | no | — |
| 267 | C3×C4 | #3676 | 1 | 2 | yes | — |
| 268 | C3×C4 | C2×#611 | 1 | 1 | yes | characteristic |
| 269 | C3×C4 | C2×#611 | 1 | 1 | yes | characteristic |
| 270 | C3×C4 | (C2×D3)⋊Dic3 | 1 | 2 | yes | — |
| 271 | C3×C4 | C2×#625 | 1 | 1 | yes | characteristic |
| 272 | C3×C4 | C2×#626 | 1 | 1 | yes | characteristic |
| 273 | Dic3 | — | 2 | 2 | no | — |
| 274 | C32 | #5207 | 1 | 1 | yes | characteristic |
| 275 | C9 | — | 2 | 1 | no | — |
| 276 | C9 | #5126 | 1 | 1 | yes | characteristic, complemented |
| 277 | C23 | — | 3 | 2 | no | — |
| 278 | C23 | — | 6 | 4 | no | — |
| 279 | C23 | — | 6 | 2 | no | — |
| 280 | C23 | D3×Dic9 | 1 | 1 | yes | characteristic |
| 281 | C2×C4 | — | 3 | 2 | no | — |
| 282 | C2×C4 | — | 6 | 2 | no | — |
| 283 | C2×C4 | — | 6 | 2 | no | — |
| 284 | C2×C4 | — | 6 | 2 | no | — |
| 285 | C2×C4 | — | 6 | 4 | no | — |
| 286 | C2×C4 | D3×Dic9 | 1 | 1 | yes | characteristic |
| 287 | C2×C4 | #6194 | 1 | 2 | yes | — |
| 288 | C2×C4 | #6195 | 1 | 2 | yes | — |
| 289 | C2×C4 | C2×D3×D9 | 1 | 1 | yes | characteristic |
| 290 | C8 | — | 18 | 2 | no | — |
| 291 | C8 | — | 54 | 2 | no | — |
| 292 | C2×C3 | — | 2 | 2 | no | — |
| 293 | C2×C3 | — | 2 | 2 | no | — |
| 294 | C2×C3 | — | 2 | 1 | no | — |
| 295 | C2×C3 | — | 2 | 2 | no | — |
| 296 | C2×C3 | — | 4 | 2 | no | — |
| 297 | C2×C3 | — | 6 | 4 | no | — |
| 298 | C2×C3 | C2×#3667 | 1 | 2 | yes | — |
| 299 | C2×C3 | C2×#3676 | 1 | 1 | yes | characteristic |
| 300 | C2×C3 | D3×#208 | 1 | 2 | yes | — |
| 301 | C2×C3 | C2×(C2×D3)⋊Dic3 | 1 | 1 | yes | characteristic |
| 302 | D3 | — | 2 | 4 | no | — |
| 303 | C22 | — | 2 | 2 | no | — |
| 304 | C22 | — | 3 | 4 | no | — |
| 305 | C22 | — | 6 | 8 | no | — |
| 306 | C22 | — | 6 | 2 | no | — |
| 307 | C22 | — | 6 | 2 | no | — |
| 308 | C22 | (C2×D3)⋊Dic9 | 1 | 2 | yes | — |
| 309 | C22 | C2×D3×Dic9 | 1 | 1 | yes | characteristic |
| 310 | C4 | — | 6 | 2 | no | — |
| 311 | C4 | (C2×D3)⋊Dic9 | 1 | 2 | yes | — |
| 312 | C4 | C2×#6194 | 1 | 1 | yes | characteristic |
| 313 | C4 | C2×#6195 | 1 | 1 | yes | characteristic |
| 314 | C3 | — | 2 | 1 | no | — |
| 315 | C3 | #10588887 | 1 | 1 | yes | characteristic, complemented |
| 316 | C3 | #10591069 | 1 | 1 | yes | characteristic |
| 317 | C2 | — | 2 | 2 | no | — |
| 318 | C2 | — | 6 | 4 | no | — |
| 319 | C2 | D3×#3667 | 1 | 2 | yes | — |
| 320 | C2 | C2×(C2×D3)⋊Dic9 | 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