Here we will discuss and show you how to figure out which number is a factor of 81, but not a multiple of 45.
The most common way to determine which number is a factor of 81, but not a multiple of 45, is to simply list the factors of 81 and the multiples of 45 so you can compare the two lists.
The answer to "Which number is a factor of 81, but not a multiple of 45?" would be all the numbers that are on the Factors of 81 list, but not on the Multiples of 45 list.
Factors of 81: 1, 3, 9, 27, 81
Multiples of 45: 45, 90, 135, 180, 225...
Answer: 1, 3, 9, 27, 81
Alternatively, you can figure out which number is a factor of 81, but not a multiple of 45, by dividing every factor of 81 by 45. The answer would be all the quotients that are not integers.
Factor, but not a Multiple
You can submit another "Which number is a factor, but not a multiple?" problem below.
Which number is a factor of 82, but not a multiple of 45?
Here is a similar problem in our Multiples database that we have solved for you.