What two numbers have a GCF of 199?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 199.

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 199. Below is the beginning list of multiples of 199 (1 through 7) in numerical order.

1. 199
2. 398
3. 597
4. 796
5. 995
6. 1194
7. 1393
etc...

Two numbers that have a GCF of 199 can be 199 and any other number on the list above. Thus, two numbers that have a GCF of 199 are:

199 & 398
199 & 597
199 & 796
etc...

That is not all! Any combination of any multiple of 199 and "odd" multiples of 199 will also have GCF of 199. 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 199.

398 & 597
398 & 995
796 & 995
796 & 1393
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 199. 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 199, what are the numbers?" or "What are two numbers whose GCF is 199?"

What two numbers have a GCF of 200?
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