What two numbers have a GCF of 261?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 261.

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 261. Below is the beginning list of multiples of 261 (1 through 7) in numerical order.

1. 261
2. 522
3. 783
4. 1044
5. 1305
6. 1566
7. 1827
etc...

Two numbers that have a GCF of 261 can be 261 and any other number on the list above. Thus, two numbers that have a GCF of 261 are:

261 & 522
261 & 783
261 & 1044
etc...

That is not all! Any combination of any multiple of 261 and "odd" multiples of 261 will also have GCF of 261. 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 261.

522 & 783
522 & 1305
1044 & 1305
1044 & 1827
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 261. 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 261, what are the numbers?" or "What are two numbers whose GCF is 261?"

What two numbers have a GCF of 262?
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