What two numbers have a GCF of 1380?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 1380.

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 1380. Below is the beginning list of multiples of 1380 (1 through 7) in numerical order.

1. 1380
2. 2760
3. 4140
4. 5520
5. 6900
6. 8280
7. 9660
etc...

Two numbers that have a GCF of 1380 can be 1380 and any other number on the list above. Thus, two numbers that have a GCF of 1380 are:

1380 & 2760
1380 & 4140
1380 & 5520
etc...

That is not all! Any combination of any multiple of 1380 and "odd" multiples of 1380 will also have GCF of 1380. 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 1380.

2760 & 4140
2760 & 6900
5520 & 6900
5520 & 9660
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 1380. 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 1380, what are the numbers?" or "What are two numbers whose GCF is 1380?"

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