What two numbers have a GCF of 770?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 770.

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 770. Below is the beginning list of multiples of 770 (1 through 7) in numerical order.

1. 770
2. 1540
3. 2310
4. 3080
5. 3850
6. 4620
7. 5390
etc...

Two numbers that have a GCF of 770 can be 770 and any other number on the list above. Thus, two numbers that have a GCF of 770 are:

770 & 1540
770 & 2310
770 & 3080
etc...

That is not all! Any combination of any multiple of 770 and "odd" multiples of 770 will also have GCF of 770. 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 770.

1540 & 2310
1540 & 3850
3080 & 3850
3080 & 5390
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 770. 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 770, what are the numbers?" or "What are two numbers whose GCF is 770?"

What two numbers have a GCF of 771?
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