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The definition of a prime is an integer that has two positive factors, one and itself. These are two distinct factors. One only has one positive factor. Thus it's not a prime.

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โˆ™ 2010-06-02 02:52:43
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Q: How come one is not a prime number?
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Related questions

Is 1 composite number or prime number?

one is not compiste and not prime because its not prime and not compisete and dont ask again or i will come and kill you


Why is one a prime number?

One is not a prime number. A prime number, by definition, is a number that is only divisible by two numbers: one and itself. One is divisible by only one number, one, and therefore is not a prime number.


Is the number one a prime factor?

No 1 it is not a prime number. The definition of a prime number is that it can only have factors of one and itself. Since one already has one then it can not be a prime number.


What is one if it is not a prime number?

one is in fact a prime number.


Why isn't one a prime number prime number?

one is not a prime number because one isn't divisible by 2 diffrent numbers it is only divisible by one number one which is itself


Why prime number prime?

A prime number is a number that has only two factors which are itself and one


What is the one prime even number?

2 is one prime even number.


Why will your opponent get atlest one point if you circle a prime number?

A prime number only has two factors: itself and the number one. You get the prime number, your opponent gets one.


Is one a perfect number?

no, but I don't know why. One is not a prime number and by definition of a perfect number one must be a prime number.


Is it possible for a squared number to be prime?

No, a prime number is only divisible by itself and one. And since one doesn't count as a prime number, no.


Does every prime number have one even prime number?

No. The only even prime number is 2.


No prime number can be a perfect square True or false?

True. By definition, a prime number is divisible by one and by itself. Also by definition, a perfect square has at least an additional pair of factors - it's square root. Therefore a prime number could never be a perfect square. One exception that might come to mind in this case is the number one. One however, is not considered a prime number, and thus does not conflict with this rule.


What number has only one prime factor?

A prime number.


Why a prime number cannot be written as a product of prime factors?

A prime number has only one prime factor, and that prime factor is the number itself.


What is the place value of the highest known prime number?

The largest prime number yet discovered has 17,425,170 digits. That does not have a specific name. Perhaps you could come up with one.


What is the prime number of 46?

There is no "the" prime number. 2 is one of the prime factors of 46.


What are prime number and composite numbers?

a prime number is a number that you can plus by one


Prime number is divisible by another 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.


What prime number has only one factor?

No prime number only has one factor. Each prime number has itself and 1 as factors. Now, the number 1 of course has only one factor, but it is technically not a prime number.


Is 241 a prime number or a composite number?

241 is a prime number. Any number that only has itself and one as factors is a prime number. Therefore, since there are no factors of 241 other than one and itself it is a prime number.


Why is one not considered a prime number?

One is neither prime nor composite. For a number to be prime, it can only be dividable by 2 numbers. One is only divisible by one number, 1.


How come no number that is a multiple of 6 a prime number?

Multiples of 6 are even. The only even prime number is 2.


Is a twenty-two prime a number?

A prime number is a number which can only be divided by one or the number itself. The number 22 can be divided by one, two, eleven and 22. Thus, it is NOT a prime number


Is 741 a prime number?

A prime number can only be divided by itself and one, therefore 741 is a prime number.


Why is there only 1 prime number?

well of course there are and infinite number of prime numbers there is not only one. If you thinking of the number 1, the number one is not prime because the definition of a prime number is that it must not have any multiples except one and itself. Since a number cannot have a multiple of itself that is the same number 1 is not prime