What two numbers have a GCF of 385?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 385.

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 385. Below is the beginning list of multiples of 385 (1 through 7) in numerical order.

1. 385
2. 770
3. 1155
4. 1540
5. 1925
6. 2310
7. 2695
etc...

Two numbers that have a GCF of 385 can be 385 and any other number on the list above. Thus, two numbers that have a GCF of 385 are:

385 & 770
385 & 1155
385 & 1540
etc...

That is not all! Any combination of any multiple of 385 and "odd" multiples of 385 will also have GCF of 385. 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 385.

770 & 1155
770 & 1925
1540 & 1925
1540 & 2695
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 385. 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 385, what are the numbers?" or "What are two numbers whose GCF is 385?"

What two numbers have a GCF of 386?
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