Advertisements
Advertisements
प्रश्न
Using prime factorization method, find which of the following numbers are perfect square?
225
Advertisements
उत्तर
225 = 3 x 3 x 5 x 5
Grouping them into pairs of equal factors:
225 = (3 x 3) x (5 x 5)
There are no left out of pairs. Hence, 225 is a perfect square.
APPEARS IN
संबंधित प्रश्न
Which of the following numbers are perfect squares?
625
Which of the following numbers are perfect squares?
36
Which of the following numbers are perfect square?
79
Which of the following numbers are perfect square?
111
By what number should each of the following numbers be multiplied to get a perfect square ? Also, find the number whose square is the new number.
8820
Find the greatest number of two digits which is a perfect square.
Find the least number of three digits which is perfect square.
The ones digit in the square of 77 is ___________
A square number will not have odd number of zeros at the end
A three digit perfect square is such that if it is viewed upside down, the number seen is also a perfect square. What is the number?
(Hint: The digits 1, 0 and 8 stay the same when viewed upside down, whereas 9 becomes 6 and 6 becomes 9.)
