80803

Properties

Appears in sequences

• Fibonacci sequence beginning 7, 15.at n=19A022389
• Primes that remain prime through 3 iterations of function f(x) = 8x + 9.at n=25A023295
• Primes p that have at least four primitive roots that are not primitive roots mod p^2.at n=6A060520
• Prime numbers generated by casting a number in its own base.at n=8A064508
• Primes of the form 2*n^2+1.at n=30A090698
• Greater prime factor of successively better golden semiprimes.at n=16A165572
• Prime numbers of the form n*b^n + 1, where b, n >= 2.at n=35A178541
• Primes formed by concatenating k, k and 3 for k >= 1.at n=19A210512
• Primes having only {0, 3, 8} as digits.at n=15A261434
• Numerators of upper primes-only best approximates (POBAs) to the golden ratio, phi (A001622); see Comments.at n=17A265798
• Numerators of primes-only best approximates (POBAs) to the golden ratio, phi; see Comments.at n=17A265800
• Denominators of primes-only best approximates (POBAs) to 1/(golden ratio) = 1/phi; see Comments.at n=16A265807
• Prime numbersat n=7909