The Radical of the integer numbers from 2 to 257 [Le radical des nombres entiers de 2 à 257].

The function Radical(N) gives the product of the prime factors (with an exponent equals to 1) of N. For example:
```                    N = 1960 = 23x51x72
```
```                    Radical(1960) = 21x51x71 = 2x5x7 = 70
```

The horizontal and vertical axes display respectively the integer numbers N from 2 to 257 and their Radicals (all these values can be found inside the next table...).

```
N =   2 (prime number)
N =   3 (prime number)
N =   4 = 22
N =   5 (prime number)
N =   6 = 21x31
N =   7 (prime number)
N =   8 = 23
N =   9 = 32
N =  10 = 21x51
N =  11 (prime number)
N =  12 = 22x31
N =  13 (prime number)
N =  14 = 21x71
N =  15 = 31x51
N =  16 = 24
N =  17 (prime number)
N =  18 = 21x32
N =  19 (prime number)
N =  20 = 22x51
N =  21 = 31x71
N =  22 = 21x111
N =  23 (prime number)
N =  24 = 23x31
N =  25 = 52
N =  26 = 21x131
N =  27 = 33
N =  28 = 22x71
N =  29 (prime number)
N =  30 = 21x31x51
N =  31 (prime number)
N =  32 = 25
N =  33 = 31x111
N =  34 = 21x171
N =  35 = 51x71
N =  36 = 22x32
N =  37 (prime number)
N =  38 = 21x191
N =  39 = 31x131
N =  40 = 23x51
N =  41 (prime number)
N =  42 = 21x31x71
N =  43 (prime number)
N =  44 = 22x111
N =  45 = 32x51
N =  46 = 21x231
N =  47 (prime number)
N =  48 = 24x31
N =  49 = 72
N =  50 = 21x52
N =  51 = 31x171
N =  52 = 22x131
N =  53 (prime number)
N =  54 = 21x33
N =  55 = 51x111
N =  56 = 23x71
N =  57 = 31x191
N =  58 = 21x291
N =  59 (prime number)
N =  60 = 22x31x51
N =  61 (prime number)
N =  62 = 21x311
N =  63 = 32x71
N =  64 = 26
N =  65 = 51x131
N =  66 = 21x31x111Radical = 21x31x111 = 66
N =  67 (prime number)
N =  68 = 22x171
N =  69 = 31x231
N =  70 = 21x51x71
N =  71 (prime number)
N =  72 = 23x32
N =  73 (prime number)
N =  74 = 21x371
N =  75 = 31x52
N =  76 = 22x191
N =  77 = 71x111
N =  78 = 21x31x131Radical = 21x31x131 = 78
N =  79 (prime number)
N =  80 = 24x51
N =  81 = 34
N =  82 = 21x411
N =  83 (prime number)
N =  84 = 22x31x71
N =  85 = 51x171
N =  86 = 21x431
N =  87 = 31x291
N =  88 = 23x111
N =  89 (prime number)
N =  90 = 21x32x51
N =  91 = 71x131
N =  92 = 22x231
N =  93 = 31x311
N =  94 = 21x471
N =  95 = 51x191
N =  96 = 25x31
N =  97 (prime number)
N =  98 = 21x72
N =  99 = 32x111
N = 100 = 22x52
N = 101 (prime number)
N = 102 = 21x31x171
N = 103 (prime number)
N = 104 = 23x131
N = 105 = 31x51x71
N = 106 = 21x531
N = 107 (prime number)
N = 108 = 22x33
N = 109 (prime number)
N = 110 = 21x51x111
N = 111 = 31x371
N = 112 = 24x71
N = 113 (prime number)
N = 114 = 21x31x191
N = 115 = 51x231
N = 116 = 22x291
N = 117 = 32x131
N = 118 = 21x591
N = 119 = 71x171
N = 120 = 23x31x51
N = 121 = 112
N = 122 = 21x611
N = 123 = 31x411
N = 124 = 22x311
N = 125 = 53
N = 126 = 21x32x71
N = 127 (prime number)
N = 128 = 27
N = 129 = 31x431
N = 130 = 21x51x131
N = 131 (prime number)
N = 132 = 22x31x111
N = 133 = 71x191
N = 134 = 21x671
N = 135 = 33x51
N = 136 = 23x171
N = 137 (prime number)
N = 138 = 21x31x231
N = 139 (prime number)
N = 140 = 22x51x71
N = 141 = 31x471
N = 142 = 21x711
N = 143 = 111x131
N = 144 = 24x32
N = 145 = 51x291
N = 146 = 21x731
N = 147 = 31x72
N = 148 = 22x371
N = 149 (prime number)
N = 150 = 21x31x52
N = 151 (prime number)
N = 152 = 23x191
N = 153 = 32x171
N = 154 = 21x71x111
N = 155 = 51x311
N = 156 = 22x31x131
N = 157 (prime number)
N = 158 = 21x791
N = 159 = 31x531
N = 160 = 25x51
N = 161 = 71x231
N = 162 = 21x34
N = 163 (prime number)
N = 164 = 22x411
N = 165 = 31x51x111
N = 166 = 21x831
N = 167 (prime number)
N = 168 = 23x31x71
N = 169 = 132
N = 170 = 21x51x171
N = 171 = 32x191
N = 172 = 22x431
N = 173 (prime number)
N = 174 = 21x31x291
N = 175 = 52x71
N = 176 = 24x111
N = 177 = 31x591
N = 178 = 21x891
N = 179 (prime number)
N = 180 = 22x32x51
N = 181 (prime number)
N = 182 = 21x71x131
N = 183 = 31x611
N = 184 = 23x231
N = 185 = 51x371
N = 186 = 21x31x311
N = 187 = 111x171
N = 188 = 22x471
N = 189 = 33x71
N = 190 = 21x51x191
N = 191 (prime number)
N = 192 = 26x31
N = 193 (prime number)
N = 194 = 21x971
N = 195 = 31x51x131
N = 196 = 22x72
N = 197 (prime number)
N = 198 = 21x32x111
N = 199 (prime number)
N = 200 = 23x52
N = 201 = 31x671
N = 202 = 21x1011
N = 203 = 71x291
N = 204 = 22x31x171
N = 205 = 51x411
N = 206 = 21x1031
N = 207 = 32x231
N = 208 = 24x131
N = 209 = 111x191
N = 210 = 21x31x51x71
N = 211 (prime number)
N = 212 = 22x531
N = 213 = 31x711
N = 214 = 21x1071
N = 215 = 51x431
N = 216 = 23x33
N = 217 = 71x311
N = 218 = 21x1091
N = 219 = 31x731
N = 220 = 22x51x111
N = 221 = 131x171
N = 222 = 21x31x371
N = 223 (prime number)
N = 224 = 25x71
N = 225 = 32x52
N = 226 = 21x1131
N = 227 (prime number)
N = 228 = 22x31x191
N = 229 (prime number)
N = 230 = 21x51x231
N = 231 = 31x71x111
N = 232 = 23x291
N = 233 (prime number)
N = 234 = 21x32x131
N = 235 = 51x471
N = 236 = 22x591
N = 237 = 31x791
N = 238 = 21x71x171
N = 239 (prime number)
N = 240 = 24x31x51
N = 241 (prime number)
N = 242 = 21x112
N = 243 = 35
N = 244 = 22x611
N = 245 = 51x72
N = 246 = 21x31x411
N = 247 = 131x191
N = 248 = 23x311
N = 249 = 31x831
N = 250 = 21x53
N = 251 (prime number)
N = 252 = 22x32x71
N = 253 = 111x231
N = 254 = 21x1271
N = 255 = 31x51x171
N = 256 = 28
N = 257 (prime number)

```

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