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1 is the only number that has exactly one factor. A Prime number has exactly two factors, 1 and the number itself. A composite number has more than two factors.

Q: Why is 1 the only number that is neither prime or composite number?

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Neither. The concept of prime and composite applies only to positive whole numbers [greater than 1].

1 only has one factor, which is 1. Therefor it is neither prime or composite.

One.

49 is 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.

0 is neither a prime or a composite number. It can not be divided by any number, so it would be difficult to classify it as prime or composite. 0 and 1 are the only numbers that are not prime and are not composite.

Related questions

19 is prime the only numebr that is neither prime or composite is 1

1 is not considered to be a prime or a composite number

the number "1" is neither prime or composite the only number that go into "1" is 1. A prime number is a number that only has 2 factors.And a composite number has 3 or more factors.

Neither. The concept of prime and composite applies only to positive whole numbers [greater than 1].

1 is neither prime nor a composite number.The number one (1).

1 only has one factor, which is 1. Therefor it is neither prime or composite.

the only number that is neither prime nor composite is 1.

155 five is composite. It is composite because it has 5 as a factor. The only number that can be neither prime nor composite is 1.

is 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.

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.

Prime numbers have only 2 factors, 1 and itself. Composite numbers have 3 or more factors. 1 has only 1 factor, so it is neither a prime number or a composite number.

77 is 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.