Are 17 and 19 co-prime numbers ? What is the quick trick to find whether these numbers are co-prime numbers or ?

solution-
CO-PRIME NUMBERS-
Numbers that have no common factors or we can say that the only highest common factor among the number must be 1.

For 17 and 19 YES THEY ARE CO PRIME NUMBERS AS THEY HAVE ONLY COMMON FACTOR AS 1.
The easiest way is just to take out the HCF and check whether thge pair is having any common factor other than 1and if yes then the pair is not said to be a co-prime number.
 

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