Status of search for primes k.2^n+1

Last modified: Jun 14, 2009
k range of n prime status comment
375 300000-500000 321490, 428451, 485466 completed
381 326000-400000 none completed
385 326000-400000 none completed
393 326000-400000 none completed
399 340000-400000 none completed
1207 100000-500000 132728, 410108 completed
2101 340000-500000 474364 completed
2103 340000-500000 464609 completed
2105 340000-500000 none completed
2107 340000-500000 349682 completed
2109 340000-500000 347295, 437381, 473357 completed
2111 340000-500000 none completed
2113 340000-500000 354146 completed
2115 340000-500000 361433, 362440, 365528, 374100, 397479, 418190, 489611 completed
2117 340000-500000 none completed
2119 340000-500000 none completed
2121 340000-500000 457724 completed
2123 340000-500000 none completed
2125 340000-500000 none completed
2127 340000-500000 438820 completed
2129 340000-500000 355011, 407611 completed
2131 340000-500000 none completed
2133 340000-500000 none completed
2135 340000-500000 none completed
2137 340000-500000 419892, 446360, 477970 completed
2139 340000-500000 365855 completed
2141 340000-500000 389549 completed
2143 340000-500000 none completed
2145 340000-500000 391290 completed
2147 340000-500000 357223 completed
2149 340000-500000 373998, 425874 completed
2151 340000-500000 360900, 412623 completed
2153 340000-500000 483941 completed
2155 340000-500000 none completed
2157 340000-500000 341731 completed
2159 340000-500000 none completed
2161 340000-500000 none completed
2163 340000-500000 398020 completed
2165 340000-500000 458181 completed
2167 340000-500000 none completed
2169 340000-500000 405001 completed
2171 340000-400000 none completed
2171 400000-500000 ? in progress
2173 340000-400000 357774 completed
2173 400000-500000 ? in progress
2175 340000-400000 none completed
2177 340000-400000 none completed
2179 340000-400000 377006 completed
2181 340000-400000 358779 completed
2183 340000-400000 none completed
2185 340000-400000 none completed
2187 340000-400000 355583 completed
2189 340000-400000 365511 completed
2191 340000-400000 none completed
2193 340000-400000 none completed
2195 340000-400000 348415 completed
2197 340000-400000 none completed
2199 340000-400000 none completed
2201 340000-400000 none completed
2203 340000-400000 none completed
2205 340000-400000 346182, 366762, 390288 completed
2207 340000-400000 389551 completed
2209 340000-400000 370026 completed
2211 340000-400000 354481 completed
2213 340000-400000 none completed
2215 340000-400000 358062 completed
2217 340000-400000 none completed
2219 340000-400000 none completed
2221 340000-400000 351012 completed
2223 340000-400000 none completed
2225 340000-400000 none completed
2227 340000-400000 none completed
2229 340000-400000 348221, 393686 completed
2231 340000-400000 none completed
2233 340000-400000 none completed
2235 340000-400000 none completed
2237 340000-400000 none completed
2239 340000-400000 none completed
2241 340000-400000 347861, 359540 completed
2243 340000-400000 none completed
2245 340000-400000 387378 completed
2247 340000-400000 none completed
2249 340000-400000 none completed
2251 340000-400000 none completed
2253 340000-400000 343232 completed
2255 340000-400000 396475 completed
2257 340000-400000 none completed
2259 340000-400000 none completed
10001 450000-600000 462753, ? in progress