What two numbers have a GCF of 2840?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 2840.

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 2840. Below is the beginning list of multiples of 2840 (1 through 7) in numerical order.

1. 2840
2. 5680
3. 8520
4. 11360
5. 14200
6. 17040
7. 19880
etc...

Two numbers that have a GCF of 2840 can be 2840 and any other number on the list above. Thus, two numbers that have a GCF of 2840 are:

2840 & 5680
2840 & 8520
2840 & 11360
etc...

That is not all! Any combination of any multiple of 2840 and "odd" multiples of 2840 will also have GCF of 2840. 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 2840.

5680 & 8520
5680 & 14200
11360 & 14200
11360 & 19880
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 2840. 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 2840, what are the numbers?" or "What are two numbers whose GCF is 2840?"

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