If 1 is not prime then what you can say to it?

What is the factors and prime factors of 9?

The factors are 1, 3 and 9, while the prime factor is 3. Some people will say that 1 is also a prime factor, but 1 does not fit the definition of prime.

Why is is important that 1 is not a prime number?

It important that 1 is not prime because a quote says: "A prime number is a natural number that has exactly two different natural number factors. and so i say 1 is not a prime because a prime number has 2 factor 1 and it self and 1 dose not.

Why do you think mathmaticians decided not to call 1 a prime number?

A prime number has two factors, 1 and itself. 1 is not considered a prime number as its factors are 1. Following the rule for primes, you could say that its factors are 1 and 1, but 1 and 1 are obviously the same number.

Is 402 a co-prime?

No. You have to have at least two numbers to say whether they are co prime, as it is only if they have a common factor of 1.

What factors do 8 and five have in common?

1. That is to say, they have no prime factors in common.

Why do mathematicians say that 1 is'nt prime?

It is because of the way in which primes are defined.

What do i prime and composite?

ok well i am in prime and composite in math class and this is how: If the number is a prime then it can only have 2 factors. If it has 3 or more it is a composite number. Say 25 has a lot of factors so it is a composite number. And if 1 has only 1 factor then it is a prime number. And there you have prime and composite.

Why do mathematics say one is not prime?

Because 1 has only one factor which is itself

If the greatest common factor of two numbers is 1 what can you say about the numbers?

They are relatively prime.

Can a prime number be a multiple of any other number exept itself?

You could say that a prime number is also a multiple of 1. A good definition of prime number is: "a natural number with exactly two distinct factors". This definition explains why 1 is not a prime number.

How many prime numbers between 1 and 8888888888888888888888888888888888888888888888?

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What are the factors of prime numbers 1 100?

A number which is divisible by only itself and 1 is called a prime number. It means a prime number has only two factors.Let us say n is a prime number then its factors are 1 and n.So for any prime number we can easily write its factors because it has only two factors: 1 and the number itself.Similarly we can write the factors of prime numbers from 1 to 100.2: 1 and 23: 1 and 35: 1 and 57: 1 and 711: 1 and 11 & so on.From the definition of prime number it is clear that writing down the factors of a prime number is not a difficult task because we don't need to do any calculation.But for the prime numbers from 1 to 100 writing the factors is a tedious task as it involves nothing but writing 1 and the number itself.For the list of prime numbers visit the related questions.