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Because a Prime number has two factors which are itself and one.
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Is 0 or 1 a prime number?
1 is a prime number, but 0 is neither a prime number nor a composite number.
Which number is not a prime or a composite number?
1 is neither prime nor composite.
Is 43 prime composite or neither?
43 is a prime number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
Is number two prime or composite?
2 is a prime number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
Is 1 a prime number--why?
1 is neither a prime, nor a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
