What two numbers have a GCF of 630?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 630.

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 630. Below is the beginning list of multiples of 630 (1 through 7) in numerical order.

1. 630
2. 1260
3. 1890
4. 2520
5. 3150
6. 3780
7. 4410
etc...

Two numbers that have a GCF of 630 can be 630 and any other number on the list above. Thus, two numbers that have a GCF of 630 are:

630 & 1260
630 & 1890
630 & 2520
etc...

That is not all! Any combination of any multiple of 630 and "odd" multiples of 630 will also have GCF of 630. 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 630.

1260 & 1890
1260 & 3150
2520 & 3150
2520 & 4410
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 630. 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 630, what are the numbers?" or "What are two numbers whose GCF is 630?"

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