What two numbers have a GCF of 2155?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 2155.

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 2155. Below is the beginning list of multiples of 2155 (1 through 7) in numerical order.

1. 2155
2. 4310
3. 6465
4. 8620
5. 10775
6. 12930
7. 15085
etc...

Two numbers that have a GCF of 2155 can be 2155 and any other number on the list above. Thus, two numbers that have a GCF of 2155 are:

2155 & 4310
2155 & 6465
2155 & 8620
etc...

That is not all! Any combination of any multiple of 2155 and "odd" multiples of 2155 will also have GCF of 2155. 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 2155.

4310 & 6465
4310 & 10775
8620 & 10775
8620 & 15085
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 2155. 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 2155, what are the numbers?" or "What are two numbers whose GCF is 2155?"

What two numbers have a GCF of 2156?
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