$\color{#FF6800}{ 13 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$ $ Do prime factorization $ $
$\color{#FF6800}{ 13 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$\color{#FF6800}{ 13 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$ $ Find the number of divisors using an exponent $ $
$\color{#FF6800}{ 4 }$