What two numbers have a GCF of 1690?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 1690.

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 1690. Below is the beginning list of multiples of 1690 (1 through 7) in numerical order.

1. 1690
2. 3380
3. 5070
4. 6760
5. 8450
6. 10140
7. 11830
etc...

Two numbers that have a GCF of 1690 can be 1690 and any other number on the list above. Thus, two numbers that have a GCF of 1690 are:

1690 & 3380
1690 & 5070
1690 & 6760
etc...

That is not all! Any combination of any multiple of 1690 and "odd" multiples of 1690 will also have GCF of 1690. 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 1690.

3380 & 5070
3380 & 8450
6760 & 8450
6760 & 11830
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 1690. 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 1690, what are the numbers?" or "What are two numbers whose GCF is 1690?"

What two numbers have a GCF of 1691?
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