Which of the following is true?

A. 1 is a prime number
B. thirteen is a composite number
c. twenty-five is prime number
D.fifty is a composite number

Question

Which of the following is true? 

 A. 1 is a prime number 
 B. thirteen is a composite number 
 c. twenty-five is prime number 
 D.fifty is a composite number

anonymous · Answer

Its funny how I was in school for engineering yet I don't remember what a composite and prime number is.

anonymous · Answer

I DONT KNOW TOO lol ill look it up

anonymous · Answer

D is true.

since 50 has more factors other than 1 and 50 itself.

50 also is 10x5 = 25x2

anonymous · Answer

I gsuggesty you google it . it will whelp with exams

anonymous · Answer

Thank you :)

anonymous · Answer

A composite number is one having factors other than 1 and the number itself.

A prime number is one having only 1 and the number itself has factors.

Hence 13 is prime bcoz only 13x1 = 13 and there is no other way of dividing 13 fully. :)