What two numbers have a GCF of 1089?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 1089.

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 1089. Below is the beginning list of multiples of 1089 (1 through 7) in numerical order.

1. 1089
2. 2178
3. 3267
4. 4356
5. 5445
6. 6534
7. 7623
etc...

Two numbers that have a GCF of 1089 can be 1089 and any other number on the list above. Thus, two numbers that have a GCF of 1089 are:

1089 & 2178
1089 & 3267
1089 & 4356
etc...

That is not all! Any combination of any multiple of 1089 and "odd" multiples of 1089 will also have GCF of 1089. 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 1089.

2178 & 3267
2178 & 5445
4356 & 5445
4356 & 7623
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 1089. 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 1089, what are the numbers?" or "What are two numbers whose GCF is 1089?"

What two numbers have a GCF of 1090?
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