Question

Find the least number that is to be subtracted from 4000 to make it perfect square.

Answer 1

31 should be subtracted

Answer 2

Step-by-step explanation:

√4000=63•2

Round down to 63

63^2=3969

4000-3969=31

31 is the number that is to be subtracted from 4000 to make it a perfect square.