Here we will discuss and show you how to figure out which number is a factor of 84, but not a multiple of 42.
The most common way to determine which number is a factor of 84, but not a multiple of 42, is to simply list the factors of 84 and the multiples of 42 so you can compare the two lists.
The answer to "Which number is a factor of 84, but not a multiple of 42?" would be all the numbers that are on the Factors of 84 list, but not on the Multiples of 42 list.
Factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
Multiples of 42: 42, 84, 126, 168, 210...
Answer: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28
Alternatively, you can figure out which number is a factor of 84, but not a multiple of 42, by dividing every factor of 84 by 42. 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 85, but not a multiple of 42?
Here is a similar problem in our Multiples database that we have solved for you.