0
no, 19 is a Prime number and it is not even. just a random example.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Is the sum of a prime number and a composite number always even?
No, the sum of a prime number and a composite number is not always even.
Is the sum of prime number and a composite number always even?
No.
Is it true that the sum of two prime numbers is always an even number?
Not quite.When two prime numbers of 3 and higher are added together, the result is always even, because all such prime numbers are odd numbers, and when two odd numbers are added together, the result is always an even number.However 2 is a prime number, and 2 is also an even number. Adding 2 (an even number) to a different prime number (an odd number) will always yield an odd number.Only if you don't include "2".
Do you always get a prime number when you rivers a two digit prime number?
No, not always. When you reverse a two-digit prime number, the result may or may not be a prime number. It depends on the specific number you are reversing.
Can a even number be a prime number even though all the prime numbers are odd?
Two is even and it's a prime number. All other even numbers can never be prime though because they will always be divisible by 2. So in fact, not all prime numbers are odd, but 2 is the only even prime number.
Does a prime number always go an equal number of times?
No. A given number need not even be divisible by a given prime.
Is even number times even number always even?
Yes, it is. Any whole number times an even number will be even. This is because whole numbers can be represented as the product of their prime factors. Every even number contains 2 as a prime factor (thereby excluding all even numbers above 2 from being prime.) Additionally, the product of any two numbers is equal to the product of their prime factors. This means that the result of multiplying an even number by a whole number will always have a prime factor of 2, making it an even number.
Why are square numbers one less than a prime number always even?
Prime numbers, except 2, are always odd (they would not be prime if they were even cos they would be divisible by 2.) 1 less than any odd number must be an even number.
Is 8 both prime and even?
No, as a matter of fact there is no such thing as a prime and even number. Even numbers will always be able to divide by two.
Does two prime numbers always add up to an even number?
No, they do not. If one of the prime numbers is 2, you will have an odd number.
Could prime numbers can never be even numbers?
Not quite true . . . the number '2' is a prime number. All the rest of the even numbers cannot be prime because they always can be divided by 2.
Is 476 prime?
It is an even number so no. Fastest way to tell is to check if it is an even number or not. If it is, unless it is the number 2, then answer is always no.
