Question

seperately write composite and prime number upta 20​

Answer 1

Answer:

Prime numbers - 2(only even prime number),3,5,7,11,13,17,19

Composite numbers - 4,6,8,9,10,12,14,15,16,18,20

1 is neither prime nor composite

Answer 2

Answer:

4,6,8,9,10,1214,15,16,18 and 20 are composite numbers.The rest are prime numbers except 1.1 is neither prime nor composite number