In the place of "Find the sum of all products whose...", I would say: "Find the number of all products whose..." ;-)
Why  instead of 0?
Since I have kludged a solution together, can I have a hint?
this solution works on my comupter
I see the first test command line is corrupted
:( :( :(
I've fixed that first line in the test suite. Try it again.
The Goldbach Conjecture, Part 2
Check if sorted
Back to basics 8 - Matrix Diagonals
Spot the First Occurrence of 5
Find indices of diagonal elements
Rank of magic square (for beginners)
BLOCK x3 (Version 4)
Mysterious digits operation (easy)
How to reverse spdiags ?
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