Question

4. Write the following:
a. Two pairs of co-prime number between 20 and 32
b. Any four pairs of twin prime numbers.
c. First ten prime numbers.
d. Smallest odd composite number.
Give five pair of co-prime numbers.
Express the following as the sum of two prime nun
b. 30
a. 24
Express 49 as the sum of three odd prime numbers​

Answer 1

Answer:

(a) 21 and 22 , 23 and 24

(c) 2,3,5,7,11,13,17,19,23,29

(d) 9

1 and 2 , 2 and 3 , 21 and 22 , 23 and 24 , 3 and 4

30 = 7 and 23

24 = 7 and 17