What two numbers have a GCF of 378?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 378.

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 378. Below is the beginning list of multiples of 378 (1 through 7) in numerical order.

1. 378
2. 756
3. 1134
4. 1512
5. 1890
6. 2268
7. 2646
etc...

Two numbers that have a GCF of 378 can be 378 and any other number on the list above. Thus, two numbers that have a GCF of 378 are:

378 & 756
378 & 1134
378 & 1512
etc...

That is not all! Any combination of any multiple of 378 and "odd" multiples of 378 will also have GCF of 378. 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 378.

756 & 1134
756 & 1890
1512 & 1890
1512 & 2646
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 378. 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 378, what are the numbers?" or "What are two numbers whose GCF is 378?"

What two numbers have a GCF of 379?
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