Question

Find the least number that must be subtracted 3139 so that become perfect square number

Answer 1

Answer:

least number will be 3 which will be subtracted from 3139 to get 3136 which is the square of 56

Step-by-step explanation:

first take 2 digits from left that is 31 (from 3139)

take a number whose square will be equal or less than 31

5*5= 25 (subtract 25 from 31 you will get 6)

Now, write the number together 639

we got 6 from subtraction and 39 from remaining of 3139

Next, Add the numbers 5 + 5= 10

You have to think of a number which will be written next to 10 and same number will be multiplied by it

i.e 106*6 = 636

now subtract 636 from 639 you will get 3

Least number will be 3