Question

what is prime numbers and composite

Answer 1

hye

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lets see what is prime number: -


any number which has only two factors i.e 1 and itself [the number itself] is called  a prime number.


for example :

 a is the number a(2)={1,2}a(5)={1,5}

any number which  has more than two factors are called composite numbers 

example 

f is the number 

f(6)={1,2,3,6}
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hope it helsp  u/................

Answer 2

Numbers whose factors are 1 and the number itself, then the number is called a prime number. The number which has other than 1 and the number itself, many factors ,then the number is called a composite number.