108109

Properties

Appears in sequences

• Primes formed by concatenating n with n+1.at n=16A030458
• Primes whose decimal expansion is a concatenation of two or more consecutive increasing numbers (no leading zeros allowed).at n=17A052087
• a(n) is the n-th prime that ends with prime(n), or 0 if there do not exist n primes ending with prime(n).at n=28A089778
• Primes from merging of 6 successive digits in decimal expansion of the Champernowne Constant.at n=5A104949
• Primes formed by concatenating k with k+1, where k+1 is a prime.at n=8A134428
• Primes that are a concatenation of 2*k and 2*k+1 or 2*k and 2*k-1 for some k.at n=29A154530
• Primes formed from the concatenation of n and nextprime(n).at n=26A280376
• a(n) is the number of five element sets of distinct integer-sided trapezoids whose base angles are 60 degrees that fill an equilateral triangular grid of side n units.at n=29A391498
• Prime numbersat n=10285