929573

Properties

Appears in sequences

• Weakly prime numbers (or isolated primes): changing any one decimal digit always produces a composite number, with restriction that first digit may not be changed to a 0.at n=4A158124
• Weakly prime numbers in the sense of A158124 but not A050249.at n=0A158125
• a(n) = smallest member of the n-th term in S(10) (defined in Comments).at n=10A158578
• a(n) = largest member of the n-th term in S(10) (defined in Comments).at n=10A158579
• Prime numbersat n=73442