Question

Find the smallest number which must be subtracted from 5607 to make it a perfect square​

Answer 1

Answer:

$131$

Step-by-step explanation:

The largest square number below $5607$ is $\Big(\big\lfloor\sqrt{5607}\big\rfloor\Big)^2=74^2=5476$

So we need to subtract $5607-5476=131$.