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# Is -2 a prime number or not and why?

Updated: 11/4/2022

Wiki User

14y ago

no because it has only one factor

Wiki User

14y ago

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Q: Is -2 a prime number or not and why?
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### Why isn't 2 a prime number?

But 2 is a prime number.

### Is 2 an odd prime number?

NO,2 is the only prime number which is even, so 2 is not a odd prime number.

### How do you prepare a flowchart to determine prime from 1-20?

If the number is &lt; 2 then it is not a prime. If the number is == 2 then it is a prime. If the number is divisible by 2 then it is not a prime and so on.

### What is the prime factors of 2?

Prime Factorization of 22 is a prime number, so it does not have a prime factorization.

### Are 1 and 2 prime numbers?

2 is a prime number. 1 is not a prime number

### What is the prime number of number 2?

2 is itself a prime.

### Is 2 a composite or prime?

2 is a prime numberIt is a prime number.

### -2 is a prime number or not?

yes, 2 is a prime number but 1 is not.

prime

### Why is the number 2 a prime number and an even but not odd?

2 is a prime number because it has two factors. It is the only even 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.

### Can a even number connot be a prime number?

2 is even, and it is a prime number. No other even number is prime, since by definition, an even number has 2 as a factor.