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# Can 1 be a prime factor of a number?

Updated: 4/28/2022

Wiki User

8y ago

No - as 1 is not a Prime number.

Wiki User

13y ago

Wiki User

8y ago

No.

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Q: Can 1 be a prime factor of a number?
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### Is Every prime number is a factor of 1.?

Nope.... 1 is a factor of every prime number !

### 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.

### Why is 1 not a prime factor?

Because 1 is not a prime number.

### Is 1 a prime factor of 28?

No, 1 is not a prime number.

### Is 1 a prime factor of 15?

No, 1 is not a prime number.

1

### Can 1 and the factor be used itself to be a factor tree?

The purpose of a factor tree is to divide a number into prime factors. 1 is not a prime number.

### Can 1 be a prime number?

no it can not be a prime number as a prime number has has to have 2 factors in it and 1 only has 1 factor itself

a prime number

### Is a factor a prime number?

A factor can or cannot be a prime number Ex: 2 is the factor of all other even numbers its a prime number but 9 is a factor of 18 and its not a prime number A prime is a factor but a factor being a prime number varies

### Is a prime number the same as a prime factor?

If you are talking about the number itself, they can be the same. To be specific: A prime number is a number that only has the factors 1 and itself. A factor is a number that when multiplied creates a product. A prime factor is a prime number that is multiplied to create a product.

a prime number