87509

Properties

Appears in sequences

• Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2, 6,6]; short d-string notation of pattern = [266].at n=26A078849
• Class 7+ primes.at n=21A081635
• Primes p for which exactly five bases b with 1 < b < p exist such that p is a base b Wieferich prime.at n=25A255208
• a(n) is the smallest lesser twin prime p from A001359 such that the distance to the previous lesser twin prime is 6*n.at n=42A340573
• The number of vertices on a vesica piscis formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=19A341878
• Prime numbersat n=8493