Always prime
Harry, Tom and I were looking to find a set of three digits (not necessarily all different) such that whichever order one wrote them down in the resultant 3-digit number was a prime.
We each found a different valid example. One of Harry’s digits also appeared in my example, and one of my digits also appeared in Tom’s example.
What were my three digits?
WIN £15 will be awarded to the sender of the first correct answer opened on Wednesday 14 July. The Editor’s decision is final. Please send entries to Enigma 1599, Â鶹´«Ã½, Lacon House,…
