Find nine 11-digit pandigital prime numbers P<Q<R<S<T<U<V<W<X that can be written in a column so that each of the first 10 columns of digits has 9 distinct digits.
Find the set with smallest X.
(In reply to
re: soln by K Sengupta)
Thank you KS. Thanks for calling this to my attention.
Indeed, I would like to put my methods to bear on the 8 row
length pdp problem.
Just a little note: If my experience with the last two pdp problems
are any guide, then this sentence in the problem:
"Find the set with smallest W"
might better read
"Find a set with smallest W", since each time I have been finding
millions of solutions with the smallest W, the smallest
possible value for largest pdp in the column.
Added later: indeed - the methods worked - the least pdp was also the smallest prime pdp beginning with "8", and there were more than 10 million such solutions... See solution
here.
Edited on December 12, 2023, 12:04 pm
re(2): soln
