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Start looking for factors; you already know that 1 is a factor, and that the number itself is a second factor (unless the number is 1).
As soon as you find a factor that is neither 1 nor the number itself, the number is composite.
If you find exactly two factors, the number is prime.
If the number has only one factor, the number is 1, which is neither prime nor composite.
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What is a counting number that is neither prime nor composite?
1
Why should all the numbers be prime or composite?
Not all numbers are either prime or composite. The number 1/2 is neither prime nor composite. If you are referring only to the natural or counting numbers, note that every natural number is equal to the product of itself and 1 so each number has at least one divisor, itself. If it has no more divisors, then it is prime. If it has more than itself as a divisor, then it is composite.
Is 20 a prime composite?
wowo is it a composite number dang how did I not see that...
What set does 6 belong to?
There is not just one set of numbers to which 6 belongs.. It is an even number and a composite number. It also belongs to each of the following:Natural (N), Counting N0, Integer Z.
Is 47 a composite number?
No, it is not a composite number, it's a prime number.
