888888887

Properties

Appears in sequences

• Largest n-digit prime with all even digits except for the least significant digit.at n=8A068692
• Primes of the form identical digits followed by a 7.at n=24A090147
• Primes of the form 80*R_k + 7, where R_k is the repunit (A002275) of length k.at n=4A093171
• Primes of form repdigit - 1. Primes whose sum of divisors is a decimal repdigit.at n=12A096843
• a(n) is the largest prime before A002282(n) repdigits.at n=8A099668
• Near-repdigit primes with at least two 8's as the repeated digit.at n=8A105976
• Primes such that the outer 2 digits are n and n-1 and all inner digits are 8, where 0 < n < 9.at n=5A108836
• Largest base 10 near-repdigit (all but one digit alike) prime with digit n repeated n times (or 0, if no such prime exists).at n=7A160369
• a(n) = (8*10^n - 17)/9 for n > 0.at n=8A173812
• Largest n-digit prime with the most digits equal to 8.at n=8A178006
• Primes with exactly eight 8's.at n=1A178557
• k-digit primes with the same even digit repeated k-1 times and a single odd digit.at n=40A320256
• Prime numbersat n=45470646