What two numbers have a GCF of 655?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 655.

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 655. Below is the beginning list of multiples of 655 (1 through 7) in numerical order.

1. 655
2. 1310
3. 1965
4. 2620
5. 3275
6. 3930
7. 4585
etc...

Two numbers that have a GCF of 655 can be 655 and any other number on the list above. Thus, two numbers that have a GCF of 655 are:

655 & 1310
655 & 1965
655 & 2620
etc...

That is not all! Any combination of any multiple of 655 and "odd" multiples of 655 will also have GCF of 655. 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 655.

1310 & 1965
1310 & 3275
2620 & 3275
2620 & 4585
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 655. 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 655, what are the numbers?" or "What are two numbers whose GCF is 655?"

What two numbers have a GCF of 656?
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