What two numbers have a GCF of 397?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 397.

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 397. Below is the beginning list of multiples of 397 (1 through 7) in numerical order.

1. 397
2. 794
3. 1191
4. 1588
5. 1985
6. 2382
7. 2779
etc...

Two numbers that have a GCF of 397 can be 397 and any other number on the list above. Thus, two numbers that have a GCF of 397 are:

397 & 794
397 & 1191
397 & 1588
etc...

That is not all! Any combination of any multiple of 397 and "odd" multiples of 397 will also have GCF of 397. 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 397.

794 & 1191
794 & 1985
1588 & 1985
1588 & 2779
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 397. 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 397, what are the numbers?" or "What are two numbers whose GCF is 397?"

What two numbers have a GCF of 398?
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