perplexus.info :: Numbers : Feathers of different colors

Home > Numbers

Feathers of different colors (Posted on 2018-10-06)

How many 3-digit primes with 3 distinct digits are there? Same question for 4 -digit primes with 4 distinct digits.

, Bonus: Generalize for n distinct primes and digits. (n=2 to 7).

AFAIK - not in OEIS.

No Solution Yet Submitted by Ady TZIDON

No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)

re: computer-assisted solution and extension (spoiler)

Comment 2 of 2 |

Your interpretation was exactly what I actualy meant

I have corrected the wording to avoid possible misunderstanding.

Thank you, Charlie both for your remarks and for quoting OEIS.

Posted by Ady TZIDON on 2018-10-17 10:46:43

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (0)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info