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Every number except the number 1 has at least two factors, 1 and the number itself. Prime numbers have exactly two factors and composite numbers have more than two factors. All even numbers except the number 2 are composite numbers and have more than two factors. The number 2 is prime and its only factors are 1 and 2.

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โˆ™ 2012-03-13 01:10:26
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Q: Do all even numbers have two factors and why?
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Related questions

Do all even numbers have as a factors?

do you mean " what does all even numbers have as factors?"? then the number two.


Which Two factors will always go into Even numbers?

1 and 2 are factors of all even numbers.


Do all even numbers have only even numbers for factors?

No. For example, 30 is an even number but two of its factors are odd; 5 and 15.


Why can even numbers be prime numbers (apart from two)?

Apart from 2 all even numbers are composite numbers because they have more than two factors.


Why are all prime numbers odd?

Not all prime numbers are odd. There is one prime number that is even: 2. A prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors. All even numbers are divisible by 2. Thus, all even numbers have 2 as a factor, which means that all even numbers greater than 2 have more than two factors, so they cannot be prime numbers.


What are two numbers that are factors common to all pairs of even numbers?

12 14


What two number are factors of all even numbers?

1 and 2


Do all factors of even numbers are even?

No. For example, the factors of 6 are 1, 2, 3, and 6. Two of these are even, the others are odd.


Are all prime numbers even?

Almost all prime numbers are odd. There is only one prime number that is even - the number 2. A prime number is a number with two and only two factors: 1 and itself. All even numbers greater than 2 are divisible by 2, which means they have more than two factors, so they cannot be prime numbers.All prime numbers except 2 are odd.


Is the gcf of any two numbers two even numbers always even?

Yes because if it is even then all of it's factors will be even. It is fairly different if it's an odd number. But I will not get into that.


What are two factors of 32340?

Like all even numbers, 1 and 2.


Why is there one even prime number?

All other even numbers have more than two factors.


Are all even numbers compsit?

Yes all even numbers are composite with the exception of 2 which is a prime number because it has only two factors which are itself and one


Do all even numbers have at least two prime factors?

Not two DISTINCT prime factors, no. For example, 64 = 2^6 only has prime factor 2. All even numbers which are not a power of 2 must have at least two distinct prime factors, however; one of them will, of course, be 2.


Why even numbers can't be prime numbers?

Because with the exception of 2 they all have more than two factors.


Why are all other even numbers composite?

Because they have more than two factors.


Is the GCF of any two numbers always odd and why?

The GCF of any two odd numbers is always odd because odd numbers don't have any even factors. The GCF of any two even numbers is always even because even numbers are divisible by two and any common factors would have at least one two in common. The GCF of an even and an odd number is odd because odd numbers don't have any even factors.


Does all of the prime numbers have two factors?

Yes, all prime numbers have only two factors


Why is two the only even prime number?

two is the only even prime number because only one and itself can be multiplied together to get that number.All prime numbers have two factors. All even numbers greater than two have more than that.


Is an even number composite?

All even numbers are composite numbers except 2 which is the only even prime number because it has only two factors which are itself and one.


Why are all composite numbers not even?

Because composite number have more than two factors which may include odd and even numbers as for instance 21 is an odd numbers with more than two factors which are 1, 3, 7, 21 and that all even numbers are composite numbers with the exception of 2 which is a prime number.


Is two the only prime number?

no. 2 is the only even prime number. Prime numbers are numbers that only have two factors; one and itself. E.g. The number 7 only has two factors- 1x7=7. 2 is a factor of all even numbers, therefore no other even numbers are prime. They are composite. 2, however, is a prime number, as it's only factors are itself (2) and 1.


What is a even number tht is not prime?

A prime number is any number that only has only one and itself as factors. By definition even numbers have a factor of two. Therefore all even numbers except two are not prime.


Do all prime numbers have exactly two factors?

That is correct -- all prime numbers have exactly two factors.


What are two examples of a type of number that has an odd number factor?

There are square numbers (numbers which are a square of an integer), such as 4. It's factors, listed are 1, 2, and 4. All square numbers have an odd number of factors. Then there's 1, which has only 1 factor: 1. All other numbers have an even number of factors. Prime numbers will have only 2 factors (2 is even).