Question

What should be subtracted in 1728 so it become perfect square​

Answer 1

47 is the least number that must be subtracted from 1728 so that it becomes a perfect square.

Step-by-step explanation:

Number 1728

The number must be subtracted or make smaller, so we need to find the square of number which are lesser than 1728.

Find the square of number which is most smaller and closer to 1728.

The square of 41 is the nearest and smaller to 1728.

41 × 41 = 1681

1728 - 1681 = 47.