157109

Properties

Appears in sequences

• Primes n of the form 1000p+q with primes p and q, 998>p>q>100.at n=10A228268
• Least prime divisor of 2^n - n which does not divide any 2^k - k with 0 < k < n, or 1 if such a primitive prime divisor of 2^n - n does not exist.at n=33A242292
• Greatest prime dividing 2^n - n for n>=2; a(1) = 1.at n=33A359684
• Prime numbersat n=14444