43973

Properties

Appears in sequences

• Integers k such that 2^(k-1) == 1 (mod k) and 2^(m-1) == 1 (mod m), where m = k*(A000265(k-1) - 1) + 1 and A000265 gives the odd part of its argument.at n=26A187849
• Primes having primitive roots 2, 3, 5, 7, 11, 13, and 17.at n=17A241048
• Beginning with 11, least prime such that concatenation of first n terms and its digit reversal both are primes.at n=42A380227
• Primes k such that the concatenation of (b, k, b) and (k, b, k) are both prime, where b is the binary representation of k.at n=16A389801
• Prime numbersat n=4576