Question

what least number must be added in 383 to get perfect square and also find the perfect square obtain

Answer 1

${19}^{2} < 383 < {20}^{2} \\ {20}^{2} = 400 \\ 400 - 383 = 17$
17 must be added and obtained square is 400

Answer 2

firstly find the numbers , whose square root is smaller and greater than 383.
•these are square of 19 and 20.
•square of 20 - 383.
that is 17.
so 17 must be added to make 383 a perfect square.