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No 1 it is not a Prime number. The definition of a prime number is that it can only have factors of one and itself. Since one already has one then it can not be a prime number.

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Q: Is the number one a prime factor?
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Related questions

What number has only one prime factor?

No prime number only has one factor. Each prime number has itself and 1 as factors. Now, the number 1 of course has only one factor, but it is technically not a prime number.

How you know that 2 is a prime factor?

2 is a prime number because its only factors are one and itself. Since 2 is a prime number, if it is a factor of your number, it is a prime factor.

Is a prime factor the same as a proper factor?

No, a prime factor is a single factor that is a prime number. A proper factor is a member of the set of factors that doesn't include one and the number itself.

Why isn't one a prime factor?

Because one isn't a prime number.

What is a factor of a prime number?

Itself and one

If a number is not prime it is?

If a number is not prime- that is, if a number has a positive factor besides one and itself- it is a composite number.

What do you call an number that has only one factor?

prime number

Does a prime number have a factor tree?

No. A prime number is one that has no factors except the number '1' and itself.

How old is someone with the 1 factor and is not a prime number?

The only number with one factor is 1.

What is the name of a composite number with only 1 prime factor?

Squares (or cubes or more) of prime numbers have one distinct prime factor, but if you're counting them individually, all composite numbers have at least two prime factors.

1 is not a prime number because it has only one factor. explain?

I think you already did. Prime numbers have exactly two factors. 1 is not a prime number because it has only one factor.

What is the gcf if one number is prime and the other is composite?

The answer depends on whether or not the prime number is a factor of the other number.If the prime number is a factor of the other number then the GCF is the prime, otherwise the GCF is 1.