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Q: How do you a number is a prime number?

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a factor is a factor , a prime number is a prime number, but a prime factor is a factor which is a prime number. it has to depend on what number number. exp 13 is a prime number

It is a Prime Number.41 is prime.

A prime number times a prime number is a composite number. Since prime numbers, except for 2, are odd numbers, a prime number times a prime number is usually an odd number. It will only be an even number if one of the prime numbers is 2. A prime number times a prime number will be a number with four factors unless both prime numbers are the same, in which case it will be a square number with only three factors.

The number 7 is a prime number because its only (whole number) factors are itself and 1.7 is a Prime Number.

This is impossible. A prime number is defined as a number that is only divisible by one and itself. Thus, a 'prime' number capable of being divided by another prime number is by definition not a prime number.

No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.

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

The only prime number between 120 and 130 is 127.

No.

180 is not a prime number.

it is a prime number 29 is a prime number. Its only factors are 1 and itself.It is a prime number.

The prime number is the prime factorization. For example, the prime factorization of the prime number 3 is 3. Get it?

It is prime. I have suggestion for you. Whenever you wanted to know a number is prime or not, use the calculator of this site: prime-calculator dot com.

67 is a prime number.Prime.67 is a prime number

no 1 is not a prime number

21 is a composite number, not a prime, having prime factors 3x7.

No, the answer is not going to be a prime number. For example, 2*3=6 which is not a prime number.

The question is tautological. If the answer was not a prime number then thye question would not be called a prime number question!

You is called a prime number!You is called a prime number!You is called a prime number!You is called a prime number!

19 is a prime number.19 is a prime number.19 is a prime number.19 is a prime number.

Prime number next to any prime number is called consecutive prime number. Eg:- 2,3,5,7 are prime numbers

No. 2 is the least prime number and it is the only even prime number.

49 is not a prime number. It is the square of the prime number 7.

Prime.167 is a prime number.

No, never. It would be divisible by the prime number.