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Is the number 21 composite square or prime?
21 is a composite number because it has at least one positive factor other than one or itself.
Is 21 a square number?
21 is not the square of an integer. The closest square number is 25.
What is square root of a number?
The square root is the number which is times by itself, to get the square number.
What does 2 to the half power equal?
21/2 = √2 ≈ 1.414 The rules of indices are that when multiplying add them. 21/2 x 21/2 = 21/2 + 1/2 = 21 = 2 So multiplying 21/2 by itself gives 2. But what number multiplied by itself gives 2? The answer is the square root of 2. Thus 21/2 is the square root of 2.
Is number 21 a square number?
no
How do you find the square of 21?
To square a number, you multiply it by itself. In this case, 21 x 21 is 441
What is an Adams number?
If the reverse square root of the reverse of square of a number is the number itself then it is Adam Number. For ex., 12 and 21 Take 12 square of 12 = 144 reverse of square of 12 = 441 square root of the reverse of square of 12 = 21 The reverse square root of the reverse of square of 12 = 12, then number itself. Such number is called Adam Number. cool....................
Is 21 a perfert square?
Square Number: A number that is a product of some integer with itself. Therefore, 21 is not a perfect square. An example of a perfect square is 16, since 4 times 4 is 16.
Is the number 21 composite square or prime?
21 is a composite number because it has at least one positive factor other than one or itself.
Is 21 a square number?
21 is not the square of an integer. The closest square number is 25.
What is square root of a number?
The square root is the number which is times by itself, to get the square number.
What is the square root of 2 multiplied by the square root of 2?
The answer is 2. The square root of 2 (about 1.414) is the number that when squared (multiplied by itself) is equal to 2 --(if you multiply 1.414 times itself, it is actually 1.999). sqrt 2 x sqrt 2 = (21/2)2 = 21 = 2
What is a square no?
A square number is the product you get when you multiply a number by itself.
A number that produces another number (it's square) when multiplied by itself?
The square root of a number, when multiplied by itself, will produce that number.
What does 2 to the half power equal?
21/2 = √2 ≈ 1.414 The rules of indices are that when multiplying add them. 21/2 x 21/2 = 21/2 + 1/2 = 21 = 2 So multiplying 21/2 by itself gives 2. But what number multiplied by itself gives 2? The answer is the square root of 2. Thus 21/2 is the square root of 2.
Is number 21 a square number?
no
What is 5 more than the square of a number?
The square of a number is the number multiplied by itself. Therefore the square of the number 4 written normally as 42 is = 4*4 = 16. Five more than 42 would therefore be =(4*4)+5 = 21.
