47763361

Properties

Appears in sequences

• Largest prime factor of 9^n + 1.at n=15A002592
• Cyclotomic polynomials at x=-9.at n=15A020508
• a(n) = n^8 + n^7 - n^5 - n^4 - n^3 + n + 1.at n=9A060894
• Largest prime factor of 3^n + 1.at n=30A074476
• Smallest prime factor of 3^n+1 having the form 2*k*n+1.at n=28A189241
• Primes of the form Phi_k(3), the k-th cyclotomic polynomial evaluated at 3.at n=15A211874
• Primes of the form Phi(phi(k),3), the phi(k)-th Cyclotomic polynomial evaluated at 3, where phi is the Euler totient function.at n=7A211875
• Primes which become fourth powers when the digits are rotated once to the right.at n=6A235008
• Greatest prime factor of n^10+1.at n=26A240553
• Largest prime factor of 9^n - 1.at n=29A274909
• Primes of the form Phi(k, -9), where Phi is the cyclotomic polynomial.at n=3A291991
• Primes of the form Phi(k, -3), where Phi is the cyclotomic polynomial.at n=17A292004
• Primes of the form Phi(k, 3), where Phi is the cyclotomic polynomial.at n=17A292007
• Primes of the form Phi(k, 9), where Phi is the cyclotomic polynomial.at n=4A292013
• Smallest primitive prime factor of 9^n-1.at n=29A379642
• Prime numbersat n=2874765