What two numbers have a GCF of 140?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 140.

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 140. Below is the beginning list of multiples of 140 (1 through 7) in numerical order.

1. 140
2. 280
3. 420
4. 560
5. 700
6. 840
7. 980
etc...

Two numbers that have a GCF of 140 can be 140 and any other number on the list above. Thus, two numbers that have a GCF of 140 are:

140 & 280
140 & 420
140 & 560
etc...

That is not all! Any combination of any multiple of 140 and "odd" multiples of 140 will also have GCF of 140. 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 140.

280 & 420
280 & 700
560 & 700
560 & 980
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 140. 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 140, what are the numbers?" or "What are two numbers whose GCF is 140?"

What two numbers have a GCF of 141?
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