What two numbers have a GCF of 125?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 125.

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 125. Below is the beginning list of multiples of 125 (1 through 7) in numerical order.

1. 125
2. 250
3. 375
4. 500
5. 625
6. 750
7. 875
etc...

Two numbers that have a GCF of 125 can be 125 and any other number on the list above. Thus, two numbers that have a GCF of 125 are:

125 & 250
125 & 375
125 & 500
etc...

That is not all! Any combination of any multiple of 125 and "odd" multiples of 125 will also have GCF of 125. 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 125.

250 & 375
250 & 625
500 & 625
500 & 875
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 125. 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 125, what are the numbers?" or "What are two numbers whose GCF is 125?"

What two numbers have a GCF of 126?
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