Which of the following is true?

5 is a prime number because one and five are its only factors.

nineteen is a composite number because it is only divisible by one and itself.

twelve is a prime number because it is divisible by 4.

twenty-five is a composite number because fifty-two is a prime number

Question

Which of the following is true? 

 5 is a prime number because one and five are its only factors. 

 nineteen is a composite number because it is only divisible by one and itself. 

 twelve is a prime number because it is divisible by 4. 

 twenty-five is a composite number because fifty-two is a prime number

anonymous · Answer

Just look up the definition of a prime number and composite number. What makes a prime number and what makes a composite number?  Then think about each option and which one they are.

anonymous · Answer

If you think you know the answer someone on here can verify it for you, but we don't want to just give you the answer.

anonymous · Answer

So a prime number is only divisible by only 1 and itself. A composite number has at least one divisor other than 1 and itself. So think about 5, 19, 12, and 25. Which ones of those numbers can you divide my something other than 1 and itself?