Question

For the following, find the least number that must be subtracted so that the resulting number is a perfect square.
1886

Answer 1

1886
Taking square root of 1886, we find that 37 has been left

| | 43 |
| 4 | 1886 16 |
| 83 | 286249 |
| | 37 |

Least number to be subtracted = 37