99929

Properties

Appears in sequences

• Primes that contain digits 2 and 9 only.at n=7A020460
• Numbers having four 9's in base 10.at n=29A043528
• n-th occurrence of gap of n between primes occurs at prime a(n), n even, n >= 2.at n=15A054587
• Expansion of 1/(1+x+2*x^2-x^3).at n=25A077978
• a(n) = largest prime using least number of possible digits with a digit sum n, or 0 if no such number exists. E.g., if n > 9 and there are no two-digit primes with a given digit sum n then three-digit numbers are explored and so on.at n=37A088115
• Near-repdigit primes with 9 as repeated digit.at n=19A105975
• n-th largest n-digit prime.at n=4A107109
• Largest n-digit base-10 deletable prime.at n=4A125590
• Primes p such that q-p = 32, where q is the next prime after p.at n=31A126784
• Primes containing 999 as a substring.at n=32A167292
• Irregular triangle, read by rows, of primes with suffix n and digits "9" prepended, otherwise 0.at n=31A186075
• Near-repdigit primes that are also deletable primes.at n=37A187867
• Primes having only {0, 2, 9} as digits.at n=17A261268
• a(n+3) = -a(n+2) - 2*a(n+1) + a(n) with a(0)=0, a(1)=0, a(2)=1.at n=27A276229
• Primes having only {2, 4, 9} as digits.at n=26A385785
• Primes having only {2, 5, 9} as digits.at n=29A385786
• Primes having only {2, 6, 9} as digits.at n=31A385788
• Primes having only {2, 8, 9} as digits.at n=26A385790
• a(n) is the greatest prime > a(n-1) obtained by inserting a single digit anywhere in its string of digits (including at the beginning or end), starting with a(1) = 2.at n=4A389722
• Prime numbersat n=9588