Find out the following number is prime or not :

$187$

Find out the following number is prime or not :

$149$

Find out the following number is prime or not :

$277$

Find out the following number is prime or not :

$329$

Find out whether the given pair of numbers are co-prime or not.

$(13,23)$

Find out whether the given pair of numbers are co-prime or not.

$(57,84)$

Find out whether the given pair of numbers are co-prime or not.

$(67,97)$

Find out whether the given pair of numbers are co-prime or not.

$(47,68)$

Find out whether the given pair of numbers are co-prime or not.

$(29,83)$