Q: What is a number called when it only has 1 and itself as a factor?

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The number 1. Any other number has at least two factors - 1 and itself.

1 has only one factor - itself.

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.

71 is a prime number and its only prime factor is itself. Its only other factor is 1, which is not a prime number.none because 71 is prime71 is a prime number and its only prime factor is itself. Its only other factor is 1, which is not a prime number.none because 71 is prime

Two number are said to be "relatively prime" if they have no common factors - of course, other than the trivial factor 1. Even a prime number is not "relatively prime" to itself, since the prime number itself is the common factor. For example, the common factor of 7 and 7 is 7. Thus, the only situation I can think of where a number has no common factor with itself is that the number is 1.

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prime * * * * * No, the only number with just one factor is 1. Each prime has TWO factors: 1 and the prime itself.

The only number with a single factor is ' 1 '. Every other number has at least two factors: ' 1 ' and itself. A number with only those two factors and no others is called a "prime" number.

The number 1. Any other number has at least two factors - 1 and itself.

That describes a prime number.

The number 2.

A whole number greater than 1 whose only factors is itself and 1 is called a prime factor. 2, 3, 5, 7, and 11, are just a few of them.

The only composite number which is a factor of 6 is 6 itself.

13 is a prime number. The only prime factor of a prime number is the number itself.

It is 1 because it only has itself as a factor.

1 has only one factor - itself.

a prime number

A number is called a factor when it can divide evenly into another number with no remainder. Integers only.