What two numbers have a GCF of 521?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 521.

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 521. Below is the beginning list of multiples of 521 (1 through 7) in numerical order.

1. 521
2. 1042
3. 1563
4. 2084
5. 2605
6. 3126
7. 3647
etc...

Two numbers that have a GCF of 521 can be 521 and any other number on the list above. Thus, two numbers that have a GCF of 521 are:

521 & 1042
521 & 1563
521 & 2084
etc...

That is not all! Any combination of any multiple of 521 and "odd" multiples of 521 will also have GCF of 521. 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 521.

1042 & 1563
1042 & 2605
2084 & 2605
2084 & 3647
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 521. The lists we created can go on forever.

Two numbers have a GCF of Calculator
Need the answer to a similar problem? Enter your GCF below to find the two numbers with that GCF.

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 521, what are the numbers?" or "What are two numbers whose GCF is 521?"

What two numbers have a GCF of 522?
Need more knowledge? Go here for the next question we explained and solved.