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The number 1 is neither prime nor composite.

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15y ago

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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?

To determine the number of prime numbers between 1 and 8888888888888888888888888888888888888888888888, we can use the Prime Number Theorem. This theorem states that the density of prime numbers around a large number n is approximately 1/ln(n). Therefore, the number of prime numbers between 1 and 8888888888888888888888888888888888888888888888 can be estimated by dividing ln(8888888888888888888888888888888888888888888888) by ln(2), which gives approximately 1.33 x 10^27 prime numbers.


Is 1 a prime factor of thirty?

No, 1 is not prime.