Question

find all the factor pairs for 45 and complete the equations.
45 = \square \cdot 45
45 = 3 \cdot \square
45 = 5 \cdot \square

Explanation:

Step1: Solve for first missing factor

To find the number that multiplies by 45 to get 45, divide 45 by 45.
$\frac{45}{45}=1$

Step2: Solve for second missing factor

To find the number that multiplies by 3 to get 45, divide 45 by 3.
$\frac{45}{3}=15$

Step3: Solve for third missing factor

To find the number that multiplies by 5 to get 45, divide 45 by 5.
$\frac{45}{5}=9$

Answer:

$45 = 1 \cdot 45$
$45 = 3 \cdot 15$
$45 = 5 \cdot 9$
The full set of factor pairs for 45 are (1, 45), (3, 15), (5, 9)