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One way to explain why the number 1 is neither prime nor composite is that it has only one factor which is itself. Another way to look at it is that you can multiply 1*1*1... an infinite number of times and still get 1.

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Q: Why isn't the number 1 considered composite number?

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1 is not considered to be a prime or composite number because it has only one factor which is itself.

because its not prime or composite

There are 15 prime numbers and 34 composite numbers because 1 is not considered to be a prime or composite number

Any number having more than two factors or divisors is a composite number. A prime number has exactly two divisors, 1 and the number itself, and 1 is not considered to be a prime nor a composite because it has only 1 proper factor.

The integer 1 is not considered to be a a prime or a composite number because it has only one factor which is itself.

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

Well, yes, the number 1 is usually considered in a special category. It is not considered prime, but it isn't composite, either.

If a number has more than two factors then it is a composite number otherwise it is a prime number and 1 is not considered to be a composite or a prime number.

1 is not considered to be a prime or composite number because it has only one factor which is itself.

because its not prime or composite

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

There are 15 prime numbers and 34 composite numbers because 1 is not considered to be a prime or composite number

A composite number is a number that has smaller factors (excluding 1). A prime number is one that doesn't (1 is not considered prime nor composite, because of its special role in multiplication).Since 15 is divisible by 3, it is composite.

Yes, 1 is unique because it is considered neither prime or composite.

Any number having more than two factors or divisors is a composite number. A prime number has exactly two divisors, 1 and the number itself, and 1 is not considered to be a prime nor a composite because it has only 1 proper factor.

1 is neither prime nor composite because Eratosthenes decided that it was nor prime nor composite because 1x1 is 1, but then again,1x any other number is that number, so one can go into every number before and after infinity. Confusing right? Try looking up on Wiki the guy Eratosthenes.

The integer 1 is not considered to be a a prime or a composite number because it has only one factor which is itself.