A075286 Interprimes which are of the form s*prime, s=11.

473, 803, 1243, 2453, 5093, 9097, 16753, 17897, 18953, 22297, 26147, 26807, 27247, 28369, 32197, 35387, 36773, 38797, 42163, 44803, 49423, 53933, 60533, 66077, 66319, 66803, 68189, 68233, 69157, 69773, 72083, 72347, 79343, 80663

Offset: 1

Author

Zak Seidov, Sep 12 2002

Keywords

• easy
• nonn

Comments

Interprimes of the form s*prime are in A075277-A075296 ( s = 2 - 21 ). Case s=1 is impossible.

Examples

			1243 is an interprime and 1243/11 = 113 is prime.
		

Crossrefs

Cf. A075277-A075296.

Programs

Mathematica

s=11; Select[Table[(Prime[n+1]+Prime[n])/2, {n, 2, 4000}], PrimeQ[ #/s]&]