What two numbers have a GCF of 381?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 381.

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 381. Below is the beginning list of multiples of 381 (1 through 7) in numerical order.

1. 381
2. 762
3. 1143
4. 1524
5. 1905
6. 2286
7. 2667
etc...

Two numbers that have a GCF of 381 can be 381 and any other number on the list above. Thus, two numbers that have a GCF of 381 are:

381 & 762
381 & 1143
381 & 1524
etc...

That is not all! Any combination of any multiple of 381 and "odd" multiples of 381 will also have GCF of 381. 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 381.

762 & 1143
762 & 1905
1524 & 1905
1524 & 2667
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 381. 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 381, what are the numbers?" or "What are two numbers whose GCF is 381?"

What two numbers have a GCF of 382?
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