The letters A-H are different digits from 1 to 9.
Read from left to right and top down, the four numbers formed are primes.
There is not just one solution. (Flipping along the diagonal A-H does not present a different solution).
Suppose "0" is allowed, and A cannot have that value, what other unique solutions are available?
(In reply to
re: part 1 computer solution by Dej Mar)
I am uncertain as to whether I took into account the essence of your comment when composing this problem, but I was certainly very mindful of the digits (1, 3, 7, 9) when I began to compile my spreadsheet solutions.
And I did read that comment by Charlie but gave it no further consideration just thinking that he was being his usual thorough self; too thorough in his case :-)
|
|
Posted by brianjn
on 2009-07-12 04:08:09 |
re(2): part 1 computer solution
