What two numbers have a GCF of 57?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 57.

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 57. Below is the beginning list of multiples of 57 (1 through 7) in numerical order.

1. 57
2. 114
3. 171
4. 228
5. 285
6. 342
7. 399
etc...

Two numbers that have a GCF of 57 can be 57 and any other number on the list above. Thus, two numbers that have a GCF of 57 are:

57 & 114
57 & 171
57 & 228
etc...

That is not all! Any combination of any multiple of 57 and "odd" multiples of 57 will also have GCF of 57. 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 57.

114 & 171
114 & 285
228 & 285
228 & 399
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 57. 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 57, what are the numbers?" or "What are two numbers whose GCF is 57?"

What two numbers have a GCF of 58?
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