161881

Properties

Appears in sequences

• Values of C (the hypotenuse) of a Pythagorean triangle with A (the short leg) and C both prime and part of a twin prime.at n=8A051859
• Primes with 21 as smallest positive primitive root.at n=20A061333
• Prime hypotenuses of Pythagorean triangles with a prime leg.at n=21A067756
• Primes of the form (p^k + k - 1)/k for prime p and some k > 1.at n=28A230444
• Upper twin primes which correspond to the hypotenuse in a Pythagorean triple whose short leg is also a prime.at n=11A284035
• Hypotenuses of primitive Pythagorean triangles two sides of which are Pythagorean primes.at n=10A308341
• Primes of the form (p^k+1)/2 where p is prime and k > 1.at n=28A308442
• Prime numbersat n=14842