# MATH PROBLEMS?

Maths in the City posted this on twitter:

In order to make a number we can call, we need both of $n=(10x)(13i^2)$ and $m=\frac{\sin(xy)}{2.362x}$ to be integers.

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## About the author

• #### Christian Perfect

Mathematician, koala fan, Aperiodical editor. Usually found paddling in the North Sea, or fiddling with computers.