Question

Find the least number must be added to get a perfect square 6412 ?

Answer 1

Answer:

answer is 149

Step-by-step explanation:

6412+149=6561 which is square of 81

Answer 2

149

Step-by-step explanation:

The square of 80 is 6400 so accordingly the next number to be squared will be 81 so 81 multiplied by 81 is 6561 so 6412 subtracted from 6561 is 149