607 613 617 619 631 641 643 647 653 659 661 673 677 683.
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3455 is composite: its prime factorisation is 5 x 691.
11, 31, 41, 61, 71, 101, 131, 151, 181, 191 211, 241, 271, 281, 311, 331, 401, 421, 461, 491 521, 541, 571, 601, 631, 641, 661, 691, 701, 751 761, 811, 821, 881, 911, 941, 971, 991 38 numbers up to 1,000
13 x 53 + 2= 691
-691