Which list shows all the factors of 18?
1, 2, 3, 4, 6, 9, 18
1, 2, 3, 6, 9, 18
2, 3, 4, 6, 9
2, 3, 6, 9
In each list, match the ends in pairs
For example, all the factors of 24 are 1 2 3 4 6 8 12 24
1,24
2,12
3,8
4,6
If you have done it right, all the numbers will be used up.
To find all the factors of 18, we need to find all the numbers that divide evenly into 18 without leaving a remainder.
One way to find the factors is to start by dividing 18 by 1. Since 18 divided by 1 equals 18 without any remainder, 1 is a factor of 18.
Next, we continue by dividing 18 by 2. Since 18 divided by 2 equals 9 without any remainder, 2 is also a factor of 18.
We then move on to dividing 18 by 3. Since 18 divided by 3 equals 6 without any remainder, 3 is a factor of 18.
Next, we divide 18 by 4. However, 18 divided by 4 does not equal a whole number without any remainder, so 4 is not a factor of 18.
We then move on to dividing 18 by 5, but since 5 does not divide evenly into 18, it is not a factor.
Next, we divide 18 by 6. Since 18 divided by 6 equals 3 without any remainder, 6 is a factor of 18.
Finally, we divide 18 by 9. Since 18 divided by 9 equals 2 without any remainder, 9 is also a factor of 18.
So, the list that shows all the factors of 18 is: 1, 2, 3, 6, 9, 18.
Therefore, the correct answer is: 1, 2, 3, 6, 9, 18.