Advertisements
Advertisements
प्रश्न
Using prime factorisation, find which of the following are perfect squares.
484
Advertisements
उत्तर
Prime factors of 484 = (2 × 2) × (11 × 11)
As grouping, there is no unpaired factor left over.
| 2 | 484 |
| 2 | 242 |
| 11 | 121 |
| 11 | 11 |
| 1 |
So, 484 is a perfect square.
APPEARS IN
संबंधित प्रश्न
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.
1008
Find the smallest square number that is divisible by each of the numbers 8, 15, and 20.
By just examining the unit digis, can you tell which of the following cannot be whole squares?
1028
By just examining the unit digit, can you tell which of the following cannot be whole square?
1022
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.
8281
Find the square root the following by prime factorization.
47089
Find the smallest number by which 3645 must be divided so that it becomes a perfect square. Also, find the square root of the resulting number.
Find the smallest number by which 2592 be multiplied so that the product is a perfect square.
Out of 745 students, maximum are to be arranged in the school field for a P.T. display, such that the number of rows is equal to the number of columns. Find the number of rows if 16 students were left out after the arrangement.
