What two numbers have a GCF of 658?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 658.

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 658. Below is the beginning list of multiples of 658 (1 through 7) in numerical order.

1. 658
2. 1316
3. 1974
4. 2632
5. 3290
6. 3948
7. 4606
etc...

Two numbers that have a GCF of 658 can be 658 and any other number on the list above. Thus, two numbers that have a GCF of 658 are:

658 & 1316
658 & 1974
658 & 2632
etc...

That is not all! Any combination of any multiple of 658 and "odd" multiples of 658 will also have GCF of 658. 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 658.

1316 & 1974
1316 & 3290
2632 & 3290
2632 & 4606
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 658. 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 658, what are the numbers?" or "What are two numbers whose GCF is 658?"

What two numbers have a GCF of 659?
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