What two numbers have a GCF of 915?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 915.

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 915. Below is the beginning list of multiples of 915 (1 through 7) in numerical order.

1. 915
2. 1830
3. 2745
4. 3660
5. 4575
6. 5490
7. 6405
etc...

Two numbers that have a GCF of 915 can be 915 and any other number on the list above. Thus, two numbers that have a GCF of 915 are:

915 & 1830
915 & 2745
915 & 3660
etc...

That is not all! Any combination of any multiple of 915 and "odd" multiples of 915 will also have GCF of 915. 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 915.

1830 & 2745
1830 & 4575
3660 & 4575
3660 & 6405
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 915. 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 915, what are the numbers?" or "What are two numbers whose GCF is 915?"

What two numbers have a GCF of 916?
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