487

This number is a prime.

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487 is the largest prime in a set of primes (26) that has at least one "1", two "2s", … , "nine "9s" with a minimal of the largest of these primes: {5, 19, 29, 41, 47, 53, 59, 61, 67, 79, 83, 89, 97, 149, 151, 157, 163, 167, 181, 263, 269, 281, 283, 383, 389, 487}. By Giovanni Resta. [Rivera]