Algebra Examples

$15$

$45$

Step 1

Find the common factors for the numerical part:

$15, 45$

Step 2

The factors for

$15$ are

$1, 3, 5, 15$ .

Tap for more steps...

Step 2.1

The factors for

$15$ are all numbers between

$1$ and

$15$ , which divide

$15$ evenly.

Check numbers between

$1$ and

$15$

Step 2.2

Find the factor pairs of

$15$ where

$x \cdot y = 15$ .

$\begin{array}{c} x & y \\ 1 & 15 \\ 3 & 5 \end{array}$

Step 2.3

List the factors for

$15$ .

$1, 3, 5, 15$

Step 3

The factors for

$45$ are

$1, 3, 5, 9, 15, 45$ .

Tap for more steps...

Step 3.1

The factors for

$45$ are all numbers between

$1$ and

$45$ , which divide

$45$ evenly.

Check numbers between

$1$ and

$45$

Step 3.2

Find the factor pairs of

$45$ where

$x \cdot y = 45$ .

$\begin{array}{c} x & y \\ 1 & 45 \\ 3 & 15 \\ 5 & 9 \end{array}$

Step 3.3

List the factors for

$45$ .

$1, 3, 5, 9, 15, 45$

Step 4

List all the factors for

$15, 45$ to find the common factors.

$15$ :

$1, 3, 5, 15$

$45$ :

$1, 3, 5, 9, 15, 45$

Step 5

The common factors for

$15, 45$ are

$1, 3, 5, 15$ .

$1, 3, 5, 15$

Step 6

The GCF (HCF) of the numerical factors

$1, 3, 5, 15$ is

$15$ .

$15$

$15 45$

(

)

[

]

√



≥

















≤















∩

∪







∞











