Advertisements
Advertisements
प्रश्न
Using prime factorisation, find which of the following are perfect squares.
729
Advertisements
उत्तर
Prime factors of 729 = (3 × 3) × (3 × 3) × (3 × 3)
As grouping, there is no unpaired factor left over.
| 3 | 729 |
| 3 | 243 |
| 3 | 81 |
| 3 | 27 |
| 3 | 9 |
| 3 | 3 |
| 1 |
So, 729 is a perfect square.
APPEARS IN
संबंधित प्रश्न
Find the square root of the following number by the prime factorisation method.
7744
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
Find the smallest square number that is divisible by each of the numbers 8, 15, and 20.
Find the smallest number by which the given number must bew multiplied so that the product is a perfect square:
12150
Write true (T) or false (F) for the following statement.
There are fourteen square number upto 200.
Find the square root the following by prime factorization.
196
Find the square root the following by prime factorization.
1156
Find the square root the following by prime factorization.
190969
A society collected Rs 92.16. Each member collected as many paise as there were members. How many members were there and how much did each contribute?
Write the prime factorization of the following number and hence find their square root.
7744
