Question 1042029
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What is the least number which must be added to 306455 to obtain a perfect square?
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<pre>
1.  {{{sqrt(306455)}}} = 553.58.

2.  Closest bigger integer number is 554.

3.  {{{554^2}}} = 306916.

4.  306916 - 306455 = 461.</pre>

<U>Answer</U>.  461.
</pre>