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Square roots, like sqrt(2), are Irrational Numbers. This means that they CANNOT be written as a ratio of two integers. All other real numbers can be written a s a ratio of two integers (for example,
5 is 5/1
0.33333... is 1/3
etc.
But, sqrt(2) cannot be written as something over something.
As a decimal, square roots never end and NEVER repeat.
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What is a square factor?
They are square factors that are factors of other numbers as for example 9 is a square number that is a factor of 27
Explain why a prime number can't be a square number?
Prime numbers have two factors. All square numbers (other than 1) have more than that.
Is non-real numbers exist?
no, every number is a real number --- There are numbers that are not real numbers. They are called imaginary numbers, and have the property that when they are squared, the result is negative. The square root of -1 is called i, and the square root of any other negative number is i times the square root of the absolute value of the number. So the square root of -4 is 2i.
What odd numbers are square numbers?
Any odd number multiply with itself, or any other odd number results in odd square number.
Why are 24 and 35 composite numbers?
24 and 35 have factors other than 1 and the number itself. That makes them composite numbers.
