12*42=24*21
&
203313*657624=426756*313302
are the smallest and the largest samples I provide for
mirror multiplication
Please provide additional pairs.
There is also the category of half-palindromes that become palindromes when they are mirrored
81*18
281*182
And so on
This are also to be excluded I suppose
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Posted by armando
on 2016-07-31 15:44:04 |