1524181

Properties

Appears in sequences

• Weakly prime numbers (changing any one decimal digit always produces a composite number). Also called digitally delicate primes.at n=7A050249
• 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=8A158124
• a(n) = smallest member of the n-th term in S(10) (defined in Comments).at n=15A158578
• a(n) = largest member of the n-th term in S(10) (defined in Comments).at n=15A158579
• Numbers ending in 1, 3, 7 or 9 such that changing any one decimal digit produces a composite number.at n=12A186694
• Prime numbersat n=115877