7327657

Properties

Appears in sequences

• Smallest primitive factor of 2^(2n+1) + 1.at n=33A002185
• Smallest prime factor of the n-th Jacobsthal number: a(n) = A020639(A001045(n)), with a(1)=a(2)=1.at n=66A286567
• Smallest prime factor of (2^prime(n) + 1) / 3.at n=17A360475
• a(n) is the least prime factor (> 3) in the factorization of 2^(2*prime(n))-1.at n=18A363673
• Prime numbersat n=497410