Which of the following is true?

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

B 19 is a composite number because it is only divisible by one and itself.

C 12 is a prime number because it is divisible by 4.

D 25 is a composite number because 52 is a prime number.

Question

Which of the following is true?

  A  5 is a prime number because one and five are its only factors.

 B  19 is a composite number because it is only divisible by one and itself.

 C  12 is a prime number because it is divisible by 4.

 D  25 is a composite number because 52 is a prime number.

anonymous · Answer

Lol I dont know how to tag ppl!! DX haha :P

anonymous · Answer

WhiteFlower, type the @ sign (capital 2) and just type by name. Don't make a space between the @ and my name. 
The answer is A.

anonymous · Answer

A is the right answer

anonymous · Answer

OH lol ok!! I know how to tag ppl now! WHOOT!! XD

anonymous · Answer

A prime number is when it can only be divided by 1 and itself. For example, 3, 5, and 13 are all prime numbers.
A composite number is the opposite. It is a number that can be divided by 1 and itself, but also be other numbers. For example, 6, 8, and 64 are all composite numbers. Do you understand now? :)

anonymous · Answer

Yes^^ thanks :P