64579

Properties

Appears in sequences

• Numbers n such that 121*2^n-1 is a prime.at n=18A050586
• Primes that are congruent to -1 mod n, where n is the index of the prime.at n=10A052013
• Primes p such that the p-1 digits of the ternary (base 3) expansion of k/p (for k=1,2,3,...,p-1) fit into the k-th row of a magic square grid of order p-1.at n=17A096660
• Primes p such that pi(p) divides p-1 and/or p+1, where pi(p) is the number of primes <= p.at n=15A162567
• Odd numbers n for which the number of iterations to reach the largest equals number of iterations to reach 1 from the largest in Collatz (3x+1) trajectory of n.at n=23A224533
• Primes which become squares when the digits are rotated once to the left.at n=11A234926
• Primes obtained by merging 5 successive digits in the decimal expansion of sqrt(2) + sqrt(3) + sqrt(5).at n=33A241221
• a(n) = position of the first occurrence of n in A245714.at n=30A245723
• Denominators of upper primes-only best approximates (POBAs) to sqrt(8); see Comments.at n=16A265793
• Primes 2*p*q-2*q*r+r*s where p,q,r,s are consecutive primes.at n=17A341937
• Primes p such that p, x+y, x-y, p-x*y and p+x*y are prime, where y = p mod 5 and x = (p-y)/5.at n=42A342771
• Prime numbersat n=6458