A089018 Smallest prime dividing the composite number consisting of m successive 3's followed by a terminal 1, where m equals A089017.

17, 673, 307, 19, 523, 607, 181, 199, 31, 1009, 29, 23, 177943, 61, 312929, 17, 821, 353, 363941, 829, 19, 686269, 31, 1019, 2761379, 145501, 1397023, 28529353, 47, 2543, 17, 439, 23, 59, 70717063, 15683, 31, 19, 4555681103, 10616546557, 28759, 83