Advertisements
Advertisements
प्रश्न
Find the square root of the following number by the prime factorisation method.
400
Advertisements
उत्तर
400 can be factorised as follows:
| 2 | 400 |
| 2 | 200 |
| 2 | 100 |
| 2 | 50 |
| 5 | 25 |
| 5 | 5 |
| 1 |
400 = 2 × 2 × 2 × 2 × 5 × 5
So, `sqrt400 = 2 xx 2 xx 5 = 20`
APPEARS IN
संबंधित प्रश्न
Write five numbers for which you cannot decide whether they are squares.
Find the squares of the following numbers using column method. Verify the result by finding the square using the usual multiplication:
25
Find the square root the following by prime factorization.
1764
Find the smallest number by which 147 must be multiplied so that it becomes a perfect square. Also, find the square root of the number so obtained.
Write the prime factorization of the following number and hence find their square root.
9604
The students of class VIII of a school donated Rs 2401 for PM's National Relief Fund. Each student donated as many rupees as the number of students in the class. Find the number of students in the class.
Find the square root by prime factorisation method
256
1000 is a perfect square.
Using prime factorisation, find the square roots of 11025
Using prime factorisation, find the square roots of 4761
