Name for prime numbers with only prime digits?

Question

I'm wondering, is there a name for a prime number where all digits are also prime?

Some examples: 37, 53, 3253, 5573, 23753.

I've been calling them 'double primes', but I doubt that's the correct term (if there is any).

They don't have a name, but they're one of the Smarandache sequences... — J. M. ain't a mathematician, May 05 '12 at 13:04
Uhm -- choosing a decimal representation is a rather arbitrary choice, which makes me think that this is not a very interesting property. — , May 05 '12 at 13:05
Here's a link about them at MathWorld, but no specific name for them. — hardmath, May 05 '12 at 13:20
Thanks for the MathWorld link. It explains why they don't have a name, since they are only "of interest to recreational mathematicians". I'm not a mathematician, so I find them interesting mainly for their "aesthetical" and "conceptual" appeal. :) Although, for "aesthetics", also including digits 0 and 1 makes more interesting numbers, I think. — Anders Sandvig, May 05 '12 at 18:29

score 2 · Answer 1 · answered May 05 '12 at 17:23

2

Chris Caldwell in his Prime Pages calls them "prime-digit primes."

answered May 05 '12 at 17:23

Doug Chatham

score 1 · Accepted Answer · answered May 05 '12 at 14:55

1

From GEdgar so we have an answer:

Why not call them "prime numbers with only prime digits"?

answered May 05 '12 at 14:55

Ross Millikan

2 Answers2