A106119 Primes with maximal digit > 2.

3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293

Offset: 1

Author

Zak Seidov, May 07 2005

Keywords

• nonn
• base

Programs

Mathematica

Select[Prime[Range[100]], Max[IntegerDigits[ # ]]>2&]

PARI

is(p)=vecsort(digits(p),,12)[1]>2 && isprime(p) \\ Charles R Greathouse IV, Jan 02 2013

Formula

a(n) ~ n log n. - Charles R Greathouse IV, Jan 02 2013