# Sunday Times Teaser 2699 – Low Power

*by Peter G Chamberlain*

In the addition:

** K I L O**

**+ W A T T**

** =======**

** H O U R**

different letters consistently represent different digits and **WATT** represents a number that is a perfect power.

What three digit number does **LOW** represent?

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Taking the suggestion from Teaser 2697 on board, I permuted the 10 digits in groups of (4,3,3) digits to cut down the total number of permutations and get a reasonable run time: