90 is a not perfect square.
the only perfect square factor of 90 is 9
If by 'perfect number' you mean 'perfect SQUARE', then yes. 49 is an odd number and a perfect square.
You take the square root of the number. If it is a perfect square, this will be a whole number. If it is not, it isn't a perfect square.
Well, technically, it is the square of 11.18033989...but it is not a perfect square(a perfect square is the square of a whole number. 1,4,9,16,25,36,49,64,81,100,121,144,169,196,225,256, etc.)
90 is a not perfect square.
90 is a not perfect square.
Yes, in so far as all numbers are squares (of some number). But 90 is not a perfect square.
No. The smallest 2 digit number is 10 the smallest 3 digit number is 100 - so the question is whether (100-10) is a perfect square? No - 90 is not a perfect square. 8x8 is 64 and 9x9 is 91, not 90.
Then the number is called a "perfect square".Then the number is called a "perfect square".Then the number is called a "perfect square".Then the number is called a "perfect square".
the only perfect square factor of 90 is 9
A perfect Square means a shape having 4 equal sides and the angle between two adjecent lines should be 90, But a perfect Cube means its an OBJECT with its four sides are equal dimentions. Any square has 4 equal sides and 90 degree corner angles. This is a question about number theory. A perfect square is a number whose square root is an integer (eg 9, 49 etc). Similarly a perfect cube is a number whose cube root is an integer (eg 8, 27 etc)
For a number to be a perfect square, the number's square root has to be a whole number. 9 is a perfect square because its square root is a whole number, 3. If the square root of the number is a decimal, then it is not a perfect square. For example, 13 does not divide evenly so it not a perfect square.
The perfect square factor of 50 is 25 and the perfect square factor for 90 is 9. The perfect square factors for 50x90 25x9. Of course we also have the other factors of 2 and 2x5.
If by 'perfect number' you mean 'perfect SQUARE', then yes. 49 is an odd number and a perfect square.
There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.
20 is a not perfect square.