No.
It IS true that every whole number is either prime or composite. But there are numbers that are not whole numbers, such as 2.5, which are neither prime nor composite.
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Every positive integer greater than 1 is either prime or composite.
is every number in the nineties is a composite answer
Yes, a composite number is a positive integer which has a positive divisor other than one or itself. By definition, every integer greater than one is either a prime number or a composite number and since 2 is the only even prime number the result is every number greater than 2 is a composite number
they are both prime and composite numbers
1 is not composite or prime.