What two numbers have a GCF of 1681?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 1681.

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 1681. Below is the beginning list of multiples of 1681 (1 through 7) in numerical order.

1. 1681
2. 3362
3. 5043
4. 6724
5. 8405
6. 10086
7. 11767
etc...

Two numbers that have a GCF of 1681 can be 1681 and any other number on the list above. Thus, two numbers that have a GCF of 1681 are:

1681 & 3362
1681 & 5043
1681 & 6724
etc...

That is not all! Any combination of any multiple of 1681 and "odd" multiples of 1681 will also have GCF of 1681. 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 1681.

3362 & 5043
3362 & 8405
6724 & 8405
6724 & 11767
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 1681. 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 1681, what are the numbers?" or "What are two numbers whose GCF is 1681?"

What two numbers have a GCF of 1682?
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