7, 11, 17, 19, 23, 29, 53, 67, 83, 89, 97, 103, 109, 137, 157, 163, 167, 179, 193, 197, 211, 239, 251, 263, 269, 283, 307, 347, 349, 353, 373, 379, 383, 389, 397, 401, 421, 439, 449, 461, 491, 509, 541, 547, 557, 569, 577, 587, 607, 641, 647, 661, 677, 691