Question

c. 91
2. Which of the following are prime numbers?
a. 19
b. 31
d. 103
f. 307
Also form the pairs of numbers which are
co-prime.
e. 201​

Answer 1

Answer:

2 . All the no are prime .

the pair of co - prime no is 19 and 31, 103 and 307 , 201 and 91