Well, honey, if a number is even, that means it's divisible by 2. So yes, all even numbers have 2 as a factor. It's like asking if water is wet - the answer is right in front of your face!
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No, 2 is a factor of even numbers.
2 is a divisor of all even numbers, and a divisor is a factor of all numbers which can be divided by it.
The pair of numbers that have a greatest common factor of 2 are any two even numbers. This is because the greatest common factor of two numbers is the largest number that divides both numbers evenly. Since 2 is the only even prime number, any two even numbers will have 2 as a common factor.
Even numbers, by definition, are divisible by 2. That means that every even number has at least one 2 as a factor. If every even number has one, then any set of even numbers will have at least one 2 as a common factor. Since that number has two as a factor, it's even.
No, only even numbers have 2 as a factor.No