费马伪素数
以任意整数为底的最小费马伪素数

（OEIS數列A007535）
| a | 最小的伪素数 | a | 最小的伪素数 | a | 最小的伪素数 | a | 最小的伪素数 |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | 4 =   2^{2} | 51 | 65 = 5 · 13 | 101 | 175 =   5^{2}\times 7 | 151 | 175 =   5^{2}\times 7 |
| 2 | 341 = 11 · 31 | 52 | 85 = 5 · 17 | 102 | 133 = 7 · 19 | 152 | 153 =   3^{2}\times 17 |
| 3 | 91 = 7 · 13 | 53 | 65 = 5 · 13 | 103 | 133 = 7 · 19 | 153 | 209 = 11 · 19 |
| 4 | 15 = 3 · 5 | 54 | 55 = 5 · 11 | 104 | 105 = 3 · 5 · 7 | 154 | 155 = 5 · 31 |
| 5 | 124 =   2^{2}\times 31 | 55 | 63 =   3^{2}\times 7 | 105 | 451 = 11 · 41 | 155 | 231 = 3 · 7 · 11 |
| 6 | 35 = 5 · 7 | 56 | 57 = 3 · 19 | 106 | 133 = 7 · 19 | 156 | 217 = 7 · 31 |
| 7 | 25 =   5^{2} | 57 | 65 = 5 · 13 | 107 | 133 = 7 · 19 | 157 | 186 = 2 · 3 · 31 |
| 8 | 9 =   3^{2} | 58 | 133 = 7 · 19 | 108 | 341 = 11 · 31 | 158 | 159 = 3 · 53 |
| 9 | 28 =   2^{2}\times 7 | 59 | 87 = 3 · 29 | 109 | 117 =   3^{2}\times 13 | 159 | 247 = 13 · 19 |
| 10 | 33 = 3 · 11 | 60 | 341 = 11 · 31 | 110 | 111 = 3 · 37 | 160 | 161 = 7 · 23 |
| 11 | 15 = 3 · 5 | 61 | 91 = 7 · 13 | 111 | 190 = 2 · 5 · 19 | 161 | 190 = 2 · 5 · 19 |
| 12 | 65 = 5 · 13 | 62 | 63 =   3^{2}\times 7 | 112 | 121 =   11^{2} | 162 | 481 = 13 · 37 |
| 13 | 21 = 3 · 7 | 63 | 341 = 11 · 31 | 113 | 133 = 7 · 19 | 163 | 186 =   2\times 3\times 31 |
| 14 | 15 = 3 · 5 | 64 | 65 = 5 · 13 | 114 | 115 = 5 · 23 | 164 | 165 =   3\times 5\times 11 |
| 15 | 341 = 11 · 31 | 65 | 112 =   2^{4}\times 7 | 115 | 133 = 7 · 19 | 165 | 172 =   2^{2}\times 43 |
| 16 | 51 = 3 · 17 | 66 | 91 = 7 · 13 | 116 | 117 =   3^{2}\times 13 | 166 | 301 = 7 · 43 |
| 17 | 45 =   3^{2}\times 5 | 67 | 85 = 5 · 17 | 117 | 145 = 5 · 29 | 167 | 231 =   3\times 7\times 11 |
| 18 | 25 =   5^{2} | 68 | 69 = 3 · 23 | 118 | 119 = 7 · 17 | 168 | 169 =   13^{2} |
| 19 | 45 =   3^{2}\times 5 | 69 | 85 = 5 · 17 | 119 | 177 = 3 · 59 | 169 | 231 = 3 · 7 · 11 |
| 20 | 21 = 3 · 7 | 70 | 169 =   13^{2} | 120 | 121 =   11^{2} | 170 | 171 =   3^{2}\times 19 |
| 21 | 55 = 5 · 11 | 71 | 105 =   3\times 5\times 7 | 121 | 133 = 7 · 19 | 171 | 215 = 5 · 43 |
| 22 | 69 = 3 · 23 | 72 | 85 = 5 · 17 | 122 | 123 = 3 · 41 | 172 | 247 = 13 · 19 |
| 23 | 33 = 3 · 11 | 73 | 111 = 3 · 37 | 123 | 217 = 7 · 31 | 173 | 205 = 5 · 41 |
| 24 | 25 =   5^{2} | 74 | 75 =   3\times 5^{2} | 124 | 125 =   5^{3} | 174 | 175 =   5^{2}\times 7 |
| 25 | 28 =   2^{2}\times 7 | 75 | 91 = 7 · 13 | 125 | 133 = 7 · 19 | 175 | 319 = 11 · 29 |
| 26 | 27 =   3^{3} | 76 | 77 = 7 · 11 | 126 | 247 = 13 · 19 | 176 | 177 = 3 · 59 |
| 27 | 65 = 5 · 13 | 77 | 247 = 13 · 19 | 127 | 153 =   3^{2}\times 17 | 177 | 196 =   2^{2}\times 7^{2} |
| 28 | 45 =   3^{2}\times 5 | 78 | 341 = 11 · 31 | 128 | 129 = 3 · 43 | 178 | 247 = 13 · 19 |
| 29 | 35 = 5 · 7 | 79 | 91 = 7 · 13 | 129 | 217 = 7 · 31 | 179 | 185 = 5 · 37 |
| 30 | 49 =   7^{2} | 80 | 81 =   3^{4} | 130 | 217 = 7 · 31 | 180 | 217 = 7 · 31 |
| 31 | 49 =   7^{2} | 81 | 85 = 5 · 17 | 131 | 143 = 11 · 13 | 181 | 195 =   3\times 5\times 13 |
| 32 | 33 = 3 · 11 | 82 | 91 = 7 · 13 | 132 | 133 = 7 · 19 | 182 | 183 = 3 · 61 |
| 33 | 85 = 5 · 17 | 83 | 105 = 3 · 5 · 7 | 133 | 145 = 5 · 29 | 183 | 221 = 13 · 17 |
| 34 | 35 = 5 · 7 | 84 | 85 = 5 · 17 | 134 | 135 =   3^{3}\times 5 | 184 | 185 = 5 · 37 |
| 35 | 51 = 3 · 17 | 85 | 129 = 3 · 43 | 135 | 221 = 13 · 17 | 185 | 217 = 7 · 31 |
| 36 | 91 = 7 · 13 | 86 | 87 = 3 · 29 | 136 | 265 = 5 · 53 | 186 | 187 = 11 · 17 |
| 37 | 45 =   3^{2}\times 5 | 87 | 91 = 7 · 13 | 137 | 148 =   2^{2}\times 37 | 187 | 217 = 7 · 31 |
| 38 | 39 = 3 · 13 | 88 | 91 = 7 · 13 | 138 | 259 = 7 · 37 | 188 | 189 =   3^{3}\times 7 |
| 39 | 95 = 5 · 19 | 89 | 99 =   3^{2}\times 11 | 139 | 161 = 7 · 23 | 189 | 235 = 5 · 47 |
| 40 | 91 = 7 · 13 | 90 | 91 = 7 · 13 | 140 | 141 = 3 · 47 | 190 | 231 = 3 · 7 · 11 |
| 41 | 105 = 3 · 5 · 7 | 91 | 115 = 5 · 23 | 141 | 355 = 5 · 71 | 191 | 217 = 7 · 31 |
| 42 | 205 = 5 · 41 | 92 | 93 = 3 · 31 | 142 | 143 = 11 · 13 | 192 | 217 = 7 · 31 |
| 43 | 77 = 7 · 11 | 93 | 301 = 7 · 43 | 143 | 213 = 3 · 71 | 193 | 276 =   2^{2}\times 3\times 23 |
| 44 | 45 =   3^{2}\times 5 | 94 | 95 = 5 · 19 | 144 | 145 = 5 · 29 | 194 | 195 = 3 · 5 · 13 |
| 45 | 76 =   2^{2}\times 19 | 95 | 141 = 3 · 47 | 145 | 153 =   3^{2}\times 17 | 195 | 259 = 7 · 37 |
| 46 | 133 = 7 · 19 | 96 | 133 = 7 · 19 | 146 | 147 =   3\times 7^{2} | 196 | 205 = 5 · 41 |
| 47 | 65 = 5 · 13 | 97 | 105 = 3 · 5 · 7 | 147 | 169 =   13^{2} | 197 | 231 = 3 · 7 · 11 |
| 48 | 49 =   7^{2} | 98 | 99 =   3^{2}\times 11 | 148 | 231 = 3 · 7 · 11 | 198 | 247 = 13 · 19 |
| 49 | 66 = 2 · 3 · 11 | 99 | 145 = 5 · 29 | 149 | 175 =   5^{2}\times 7 | 199 | 225 =   3^{2}\times 5^{2} |
| 50 | 51 = 3 · 17 | 100 | 153 =   3^{2}\times 17 | 150 | 169 =   13^{2} | 200 | 201 = 3 · 67 |