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What is the niether a prime nor a composite number?
The number 1 is neither prime nor composite.
Is every natural number is a real number?
Yes, natural numbers are the set of "counting numbers" - integers bigger than zero. Hence they are all real numbers.
Which expression represents an irrational number?
It is not always easy to tell if a number is irrational. If a number can be expressed as a ratio of two integers, then it is rational. If not, it is irrational. So the expression is in the negation: a number than cannot be expressed as a ratio of two integers.
List of rational and irrational numbers?
-- There's an infinite number of rational numbers. -- There's an infinite number of irrational numbers. -- There are more irrational numbers than rational numbers. -- The difference between the number of irrational numbers and the number of rational numbers is infinite.
What is the irrational number closets to 13?
There is no such number. Irrational numbers are infinitely dense. Given any number near 13, there are more irrational numbers between that number and 13 than there are rational numbers in all.
