Advertisements
Advertisements
प्रश्न
Write true (T) or false (F) for the following statement.
The square of a prime number is prime.
Advertisements
उत्तर
False
If p is a prime number, its square is p2, which has at least three factors: 1, p and p2. Since it has more than two factors, it is not a prime number.
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.
1008
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.
768
For the following number, find the smallest whole number by which it should be divided so as to get a perfect square number. Also find the square root of the square number so obtained.
2800
Write true (T) or false (F) for the following statement.
The number of digits in a square number is even.
Find the square roots of 121 and 169 by the method of repeated subtraction.
Examine if the following is a perfect square
725
Examine if the following is a perfect square.
841
Find the square root by prime factorisation method
144
Find the square root by prime factorisation method
784
