Question

What is composit number ?
What is prime numbers?
Co prime no ?

Answer 1

Dear Student

Prime numbers:
Numbers which have only two factors 1 and the number itself are called prime numbers.
E.g 2 ,3 ,5, 7 ,11 ,13, 17 and so on are all prime numbers.

Composite number:-composite numbers can be defined as the whole numbers that have more than two factors.
E.g 4,8,16,20,etc.

Co prime numbers:
Numbers which do not have any common factor between them other than one are called coprime numbers.
Two natural numbers( not necessarily Prime) are coprime if their HCF is 1.
For e.g
(1,2) , (1,3), (3,4), (3,10), (3,8), (5,6), (17,23)
​​​​even two composite numbers can also be Prime.
for e.g(16,25), (84,65)

Regards
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