What two numbers have a GCF of 165?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 165.

There is actually an infinite number of answers to this question. First, note that both the numbers we are looking for must be multiples of 165. Below is the beginning list of multiples of 165 (1 through 7) in numerical order.

1. 165
2. 330
3. 495
4. 660
5. 825
6. 990
7. 1155
etc...

Two numbers that have a GCF of 165 can be 165 and any other number on the list above. Thus, two numbers that have a GCF of 165 are:

165 & 330
165 & 495
165 & 660
etc...

That is not all! Any combination of any multiple of 165 and "odd" multiples of 165 will also have GCF of 165. We numbered the multiples above so it would be easy to identify the "odd" multiples (number 1, 3, 5, 7, etc). Thus, here are some more examples of two numbers that also have a GCF of 165.

330 & 495
330 & 825
660 & 825
660 & 1155
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 165. The lists we created can go on forever.

Two numbers have a GCF of Calculator
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Teacher Tip: If you are a teacher, you could ask these questions of your students: "I am thinking of two numbers and the GCF is 165, what are the numbers?" or "What are two numbers whose GCF is 165?"

What two numbers have a GCF of 166?
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