Advertisements
Advertisements
प्रश्न
Using prime factorisation, find which of the following are perfect squares.
841
Advertisements
उत्तर
Prime factors of 841 = (29 × 29)
| 29 | 841 |
| 29 | 29 |
| 1 |
As grouping, there is no unpaired factor left over.
So, 841 is a perfect square.
APPEARS IN
संबंधित प्रश्न
Write true (T) or false (F) for the following statement.
The difference of two square numbers is a square number
Find the squares of the following numbers using column method. Verify the result by finding the square using the usual multiplication:
71
Find the square root the following by prime factorization.
196
Find the square root the following by prime factorization.
8281
Find the square root the following by prime factorization.
27225
The area of a square field is 5184 cm2. A rectangular field, whose length is twice its breadth has its perimeter equal to the perimeter of the square field. Find the area of the rectangular field.
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.
A man, after a tour, finds that he had spent every day as many rupees as the number of days he had been on tour. How long did his tour last, if he had spent in all ₹ 1,296
Find the square root of 6400.
Using prime factorisation, find which of the following are perfect squares.
484
