What two numbers have a GCF of 1240?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 1240.

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 1240. Below is the beginning list of multiples of 1240 (1 through 7) in numerical order.

1. 1240
2. 2480
3. 3720
4. 4960
5. 6200
6. 7440
7. 8680
etc...

Two numbers that have a GCF of 1240 can be 1240 and any other number on the list above. Thus, two numbers that have a GCF of 1240 are:

1240 & 2480
1240 & 3720
1240 & 4960
etc...

That is not all! Any combination of any multiple of 1240 and "odd" multiples of 1240 will also have GCF of 1240. 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 1240.

2480 & 3720
2480 & 6200
4960 & 6200
4960 & 8680
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 1240. 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 1240, what are the numbers?" or "What are two numbers whose GCF is 1240?"

What two numbers have a GCF of 1241?
Need more knowledge? Go here for the next question we explained and solved.