$59$59 is a prime number.

Which of the following options is a factor pair of $59$59?

$56$56 and $3$3

$1$1 and $59$59

If we multiply $4$4 by $14$14, we get $56$56, so $4$4 and $14$14 make a factor pair of $56$56.

Complete the table below, listing all factor pairs of the number $15$15.

Complete the table below, listing all factor pairs of the number $91$91.