A386156 Primes having only {2, 4, 6, 9} as digits.

2, 29, 229, 269, 449, 499, 929, 2269, 2699, 2969, 2999, 4229, 4649, 4969, 4999, 6229, 6269, 6299, 6449, 6469, 6949, 9629, 9649, 9929, 9949, 22229, 22469, 22669, 22699, 24229, 24469, 24499, 26249, 26449, 26669, 26699, 29269, 29429, 29629, 29669, 42299, 42499, 42649

Offset: 1

Author

Jason Bard, Jul 18 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 A107666, A385785, A385788.

Cf. A000040, A030433, A385776.

Programs

Magma

[p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [2, 4, 6, 9]];

Mathematica

Flatten[Table[Select[FromDigits /@ Tuples[{2, 4, 6, 9}, n], PrimeQ], {n, 7}]]

PARI

primes_with(, 1, [2, 4, 6, 9]) \\ uses function in A385776

Python

print(list(islice(primes_with("2469"), 41))) # uses function/imports in A385776