52223

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 10x + 3.at n=15A023328
• Number of distinct primes in the numerator of the 2^n sums generated from the set 1, 1/2, 1/3, ..., 1/n.at n=20A075189
• Smaller of a pair of consecutive primes having only prime digits.at n=23A082755
• Prime numbers p not of the form 10k+1 for which the quintonacci quintic polynomial x^5 - x^4 - x^3 - x^2 - x - 1 modulus p is factorizable into five binomials.at n=32A135847
• Primes of the form (4k^2 + 4k - 5)/5.at n=30A154619
• Prime numbers containing the string 222.at n=14A166580
• Primes having only {2, 3, 5} as digits.at n=29A214703
• a(1) = 1; for n > 1: a(n) = smallest odd number greater than a(n-1) which does not use any digit used by a(n-1).at n=32A229364
• Primes whose hexadecimal representation contains only consonants.at n=27A238090
• Smallest initial value for shortcut form of the Collatz function (3x+1)/2 sequence that begins with exactly n-1 increases and decreases once before the last increment.at n=8A383046
• Prime numbersat n=5339