What two numbers have a GCF of 789?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 789.

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 789. Below is the beginning list of multiples of 789 (1 through 7) in numerical order.

1. 789
2. 1578
3. 2367
4. 3156
5. 3945
6. 4734
7. 5523
etc...

Two numbers that have a GCF of 789 can be 789 and any other number on the list above. Thus, two numbers that have a GCF of 789 are:

789 & 1578
789 & 2367
789 & 3156
etc...

That is not all! Any combination of any multiple of 789 and "odd" multiples of 789 will also have GCF of 789. 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 789.

1578 & 2367
1578 & 3945
3156 & 3945
3156 & 5523
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 789. 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 789, what are the numbers?" or "What are two numbers whose GCF is 789?"

What two numbers have a GCF of 790?
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