Question

13. What are co-primes? Give examples of five pairs of co-primes. Are co-primes always
primes? If no, illustrate your answer by an example.
Fynress each of the following numbers as the sum of two odd primes:​

Answer 1

Step-by-step explanation:

numbers other than prime numbers are called co prime .

in other language numbers who have 2 or more than 2 factors other than 1 are known as co prime.

no, co prime can never be prime.

for example - 9.

5 + 7= 12 which is co prime.

Answer 2

2 natural nos. are said to be co-prime, if their HCF is I

eg: 7,9,15,17,19 .co-prime nos may

not be prime