What two numbers have a GCF of 777?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 777.

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 777. Below is the beginning list of multiples of 777 (1 through 7) in numerical order.

1. 777
2. 1554
3. 2331
4. 3108
5. 3885
6. 4662
7. 5439
etc...

Two numbers that have a GCF of 777 can be 777 and any other number on the list above. Thus, two numbers that have a GCF of 777 are:

777 & 1554
777 & 2331
777 & 3108
etc...

That is not all! Any combination of any multiple of 777 and "odd" multiples of 777 will also have GCF of 777. 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 777.

1554 & 2331
1554 & 3885
3108 & 3885
3108 & 5439
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 777. 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 777, what are the numbers?" or "What are two numbers whose GCF is 777?"

What two numbers have a GCF of 778?
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