Question

(b) prime numbers and composite numbers from the set of natural numbers from
1 to 20? ​

Answer 1

Answer:

prime numbers are 2,3,5,7,11,13,17,19

composite numbers are 4,6,8,9,10,12,14,15,16,18,20

Easier way to find prime and composite number is to use sieve of Eratosthenes.

Answer 2

Step-by-step explanation:

prime number are 2,3,5,7,11,13,17,19

composite number are 4,6,8,9,10 ,12,14,15,16,18,20