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A number is considered prime if it has only two factors.

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Q: When is a number considered prime?
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Related questions

Is there a number that is prime and even?

2 is considered a prime number.


Is 1 a prime no?

1 is not considered to be a prime or composite number.


Is 3 the smallest prime number?

Two (2) is considered to be the smallest prime number.


Is 1 a prime number or a square number?

1 is not considered a prime number; 1 is a perfect square.


Why is 1 not considered as a prime number?

1 was considered as a prime but now the definition changed. Now the definition was that a prime is divisible only by 1 and itself


Why number one is not considered prime nor composite?

prime number are two factors except 1 and itself


What is a sentence for composite number?

A composite number is made up of a product of prime numbers. It might be considered a non-prime number.


Is number 1a prime or composite number?

1 is not considered to be a prime or composite number because it has only one factor which is itself.


Is there any number that is not prime and not composite?

Well, yes, the number 1 is usually considered in a special category. It is not considered prime, but it isn't composite, either.


Does a prime number have in the ones place 1 3 7 9?

The prime numbers are 3 and 7 but 1 is not considered to be a prime or a composite number


Is 1 234 568 234 567 a prime or composite number?

If a number has more than two factors then it is a composite number otherwise it is a prime number and 1 is not considered to be a composite or a prime number.


Why is one not considered prime?

The number one is not prime because it can only be divided by one number (not too) as itself and 1 are the same number