State the converse and contrapositive of the following statement:
$p:$ $A$ positive integer is prime only if it has no divisors other than $1$ and itself.

(N/A) The statement $p$ can be written in the form 'If $q$,then $r$':
If a positive integer is prime,then it has no divisors other than $1$ and itself.
The converse of the statement is:
If a positive integer has no divisors other than $1$ and itself,then it is prime.
The contrapositive of the statement is:
If a positive integer has divisors other than $1$ and itself,then it is not prime.