it take me time to understand
2015 is trap for me.
what does regular expression do in this solution?
just for decrease solution size?
Make a checkerboard matrix
Find the sum of the elements in the "second" diagonal
"Low : High - Low : High - Turn around " -- Create a subindices vector
Create a Multiplication table matrix...
convert matrix to single column
Three...is a magic number.
Pandigital Factors (Based on Euler 491)
Community Problem 500!
It's going down. We're finding simbers!
Matrix of Multiplication Facts
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