What two numbers have a GCF of 56?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 56.

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 56. Below is the beginning list of multiples of 56 (1 through 7) in numerical order.

1. 56
2. 112
3. 168
4. 224
5. 280
6. 336
7. 392
etc...

Two numbers that have a GCF of 56 can be 56 and any other number on the list above. Thus, two numbers that have a GCF of 56 are:

56 & 112
56 & 168
56 & 224
etc...

That is not all! Any combination of any multiple of 56 and "odd" multiples of 56 will also have GCF of 56. 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 56.

112 & 168
112 & 280
224 & 280
224 & 392
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 56. 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 56, what are the numbers?" or "What are two numbers whose GCF is 56?"

What two numbers have a GCF of 57?
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