6666666661
domain: N
Appears in sequences
- Smallest prime containing exactly n 6's.at n=9A037065
- Smallest prime beginning with exactly n 6's.at n=9A065589
- Primes arising in A086920, or 0 if A086920(n) = 0.at n=8A086923
- Primes of the form identical even digits followed by a 1.at n=7A089345
- Primes of the form identical digits followed by a 1.at n=19A089347
- Primes of the form 60*R_k + 1, where R_k is the repunit (A002275) of length k.at n=3A092571
- a[n] is the largest prime before A002280[n] repdigits.at n=9A099666
- Near-repdigit primes with at least two 6's as the repeated digit.at n=5A105978
- Primes of the form aaaa...aa1 where a is 6, 7, 8 or 9.at n=8A109549
- Primes of the form aaaa...aa1 where a is 3, 4, 5, 6 or 7.at n=13A109550
- a(n) = (6*10^n - 51)/9 for n > 0.at n=9A173805
- The n-digit prime with the largest number of 6's, the largest of these if there is more than 1. 0 if no such prime exists.at n=9A178004