Q: How many even integers greater than 2 and less than 20 are equal to the sum of two prime numbers?

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Prime numbers are integers. They won't equal a decimal.

All integers greater than one are divisible by prime numbers.

Integers greater than one that are not prime are composite.

All numbers greater than one are positive integers that are either composite or prime numbers.

All of them.

They are in the subset of integers which are greater than 1.

Integers greater than 1, that are not prime numbers, are called composite numbers, because they are "made up of" more than one prime factor.

They are integers which are greater than 1 and can only be evenly divided by 1 and themselves.

There are 80 such integers.

All prime numbers are integers. All integers are rational.

There is no particular characteristic that is common to such numbers other than they are positive integers greater than or equal to 4.

No. Odd numbers can be greater than, smaller than, or equal to prime numbers.

Positive integers greater than one can be separated into two categories: prime and composite. Prime numbers have only two factors, composite numbers have more than two.

False

No.

They're both positive integers greater than one.

All primes are integers, but all integers are not prime.

All the even numbers greater than 2 are composite.

The number 1 is neither prime nor composite.

False

Set builder notation for prime numbers would use a qualifying condition as follows. The set of all x's and y's that exist in Integers greater than 1, such that x/y is equal to x or 1.

Let's say that the concept of "prime numbers" and "composite numbers" is defined for a certain class of numbers, specifically, positive integers, 2 or greater.

For this type of question, you should search the Internet for a list of prime numbers. All the integers that are not prime numbers are composite. In this case, the relevant prime numbers are 101 and 103.

No, prime numbers are positive integers. Decimals are not prime numbers.

No prime numbers are irrational: All prime numbers are integers, and all integers are rational, since they can be expressed as themselves divided by 1.