Advertisements
Advertisements
Question
Find the smallest number by which 12748 be mutliplied so that the product is a perfect square?
Solution
12748 = `bar(2xx2) xx 3187`
On grouping the prime factors of 12748 as shown; one factor i.e. 3187 is left which cannot be paired with equal factor.
2 | 12748 |
2 | 6374 |
3187 | 3187 |
1 |
The given number should be multiplied by 3187.
APPEARS IN
RELATED QUESTIONS
For the following number, find the smallest whole number by which it should be multiplied so as to get a perfect square number. Also find the square root of the square number so obtained.
2028
By just examining the unit digit, can you tell which of the following cannot be whole square?
1027
Write true (T) or false (F) for the following statement.
The number of digits in a square number is even.
Write true (T) or false (F) for the following statement .
There is no square number between 50 and 60.
Find the squares of the following numbers using column method. Verify the result by finding the square using the usual multiplication:
71
Find the least square number, exactly divisible by each one of the numbers:
(i) 6, 9, 15 and 20
Find the least square number, exactly divisible by each one of the number:
8, 12, 15 and 20
Find the square roots of 121 and 169 by the method of repeated subtraction.
Find the smallest number by which 2592 be multiplied so that the product is a perfect square.
A square board has an area of 144 square units. How long is each side of the board?