A386054 Primes having only {0, 2, 7, 9} as digits.

2, 7, 29, 79, 97, 227, 229, 277, 709, 727, 797, 907, 929, 977, 997, 2027, 2029, 2099, 2207, 2297, 2707, 2729, 2777, 2797, 2909, 2927, 2999, 7027, 7079, 7207, 7229, 7297, 7727, 7907, 7927, 9007, 9029, 9209, 9227, 9277, 9907, 9929, 20029, 20297, 20707, 20929, 22027

Offset: 1

Author

Jason Bard, Jul 15 2025

Keywords

• nonn
• base
• easy

Links

• Jason Bard, Table of n, a(n) for n = 1..10000
• Index to entries for primes with digits in a given set

Crossrefs

Supersequence of A261181, A261182, A261267, A261268.

Cf. A000040, A385776.

Programs

Magma

[p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [0, 2, 7, 9]];

Mathematica

Select[FromDigits /@ Tuples[{0, 2, 7, 9}, n], PrimeQ]

PARI

primes_with(, 1, [0, 2, 7, 9]) \\ uses function in A385776

Python

print(list(islice(primes_with("0279"), 41))) # uses function/imports in A385776