A246622 Primes of the form n + product of nonzero digits of n, in order of their occurrence.

2, 11, 23, 29, 41, 47, 67, 109, 89, 107, 101, 167, 181, 223, 199, 227, 251, 293, 283, 349, 331, 433, 347, 461, 313, 383, 353, 379, 431, 457, 379, 443, 521, 547, 457, 491, 593, 499, 557, 673, 601, 823, 619, 653, 839, 607, 617, 631, 659, 673, 659, 743, 929, 919

Offset: 1

Author

K. D. Bajpai, Aug 31 2014

Keywords

• nonn
• base

Comments

Primes in A063114.

Examples

			a(2) = 11 which is prime. Also, 11 = 10 + 1, which is n + product of nonzero digit of n.
a(9) = 89 which is prime. Also, 89 = 81 + (8*1), which is n + product of nonzero digits of n.
a(10) = 107 which is prime. Also, 107 = 83 + (8*3), which is n + product of nonzero digits of n.
		

Links

• K. D. Bajpai, Table of n, a(n) for n = 1..13250

Crossrefs

Cf. A000040, A063114, A063543.

Programs

Mathematica

Select[Table[n + Times @@ DeleteCases[IntegerDigits[n], 0], {n, 1000}], PrimeQ]