438439

Properties

Appears in sequences

• Primes formed by concatenating k with k+1, where k+1 is a prime.at n=22A134428
• First prime of a pair, formed by concatenating n, n+1, the second prime (not shown) formed by concatenating n+2, n+3.at n=6A156121
• Primes formed by concatenating n with n+1 and by concatenating n+2 with n+3.at n=12A256176
• Prime numbersat n=36821