What two numbers have a GCF of 197?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 197.

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 197. Below is the beginning list of multiples of 197 (1 through 7) in numerical order.

1. 197
2. 394
3. 591
4. 788
5. 985
6. 1182
7. 1379
etc...

Two numbers that have a GCF of 197 can be 197 and any other number on the list above. Thus, two numbers that have a GCF of 197 are:

197 & 394
197 & 591
197 & 788
etc...

That is not all! Any combination of any multiple of 197 and "odd" multiples of 197 will also have GCF of 197. 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 197.

394 & 591
394 & 985
788 & 985
788 & 1379
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 197. 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 197, what are the numbers?" or "What are two numbers whose GCF is 197?"

What two numbers have a GCF of 198?
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