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by Brian Gladman on March 28, 2015

Sunday Times Teaser 2740 – X Times

by Victor Bryant

In the following multiplication sum a three digit number is being squared.

X
X
= = = = = = = = = =
X X
= = = = = = = = = =
X
= = = = = = = = = =

The digit replaced by X has the same value wherever it occurs, all other digits having been replaced by a dash (-).

What is the number being squared?

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