188888881

Properties

Appears in sequences

• Tetradic primes (primes in A006072).at n=19A068188
• Primes in which a string of 8's is sandwiched between two 1's.at n=2A068648
• Primes which are a sandwich of numbers using at most one digit between two 1's.at n=13A068685
• Smallest palindromic prime containing exactly n 8's.at n=6A083979
• Smallest prime whose product of digits is an n-th power.at n=20A089364
• Smallest prime whose product of digits is 2^n.at n=21A089365
• Palindromic primes in which all internal digits are 8.at n=5A108847
• a(n) = n 8's sandwiched between two 1's.at n=7A205088
• Primes of the form XYYYYYYYX, where Y is a single digit.at n=0A228377
• a(n) is the smallest 2*n + 1 digit prime consisting of a string of 2*n - 1 identical digits d sandwiched between two same digits different from d, or -1 if no such prime exists.at n=3A385144
• Prime numbersat n=10497091