What two numbers have a GCF of 38?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 38.

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 38. Below is the beginning list of multiples of 38 (1 through 7) in numerical order.

1. 38
2. 76
3. 114
4. 152
5. 190
6. 228
7. 266
etc...

Two numbers that have a GCF of 38 can be 38 and any other number on the list above. Thus, two numbers that have a GCF of 38 are:

38 & 76
38 & 114
38 & 152
etc...

That is not all! Any combination of any multiple of 38 and "odd" multiples of 38 will also have GCF of 38. 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 38.

76 & 114
76 & 190
152 & 190
152 & 266
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 38. 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 38, what are the numbers?" or "What are two numbers whose GCF is 38?"

What two numbers have a GCF of 39?
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