74843

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 5x + 4.at n=11A023314
• Primes with multiplicative persistence value 6.at n=18A046506
• Emirps of the form k^2 + k + 41.at n=35A155953
• Numbers n such that (x^n-1/x^n)/(x-1/x) is prime, where x = sqrt(3) + sqrt(2).at n=19A158878
• Primes p such that both (p^2 + 5)/6 and (p^4 + 5)/6 are prime.at n=43A253925
• Lexicographically largest increasing sequence of primes for which the continued square root map (see A257574) produces the decimal expansion of e (Euler's number).at n=35A257764
• Larger of emirp pairs that are merely reversals of their end digits.at n=40A263242
• Prime numbersat n=7380