What two numbers have a GCF of 1428?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 1428.

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 1428. Below is the beginning list of multiples of 1428 (1 through 7) in numerical order.

1. 1428
2. 2856
3. 4284
4. 5712
5. 7140
6. 8568
7. 9996
etc...

Two numbers that have a GCF of 1428 can be 1428 and any other number on the list above. Thus, two numbers that have a GCF of 1428 are:

1428 & 2856
1428 & 4284
1428 & 5712
etc...

That is not all! Any combination of any multiple of 1428 and "odd" multiples of 1428 will also have GCF of 1428. 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 1428.

2856 & 4284
2856 & 7140
5712 & 7140
5712 & 9996
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 1428. 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 1428, what are the numbers?" or "What are two numbers whose GCF is 1428?"

What two numbers have a GCF of 1429?
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