Q: What are the factor combinations of the number 16,720,820?

 A:
Positive:   1 x 167208202 x 83604104 x 41802055 x 334416410 x 167208220 x 83604129 x 57658058 x 288290116 x 144145127 x 131660145 x 115316227 x 73660254 x 65830290 x 57658454 x 36830508 x 32915580 x 28829635 x 26332908 x 184151135 x 147321270 x 131662270 x 73662540 x 65833683 x 4540
Negative: -1 x -16720820-2 x -8360410-4 x -4180205-5 x -3344164-10 x -1672082-20 x -836041-29 x -576580-58 x -288290-116 x -144145-127 x -131660-145 x -115316-227 x -73660-254 x -65830-290 x -57658-454 x -36830-508 x -32915-580 x -28829-635 x -26332-908 x -18415-1135 x -14732-1270 x -13166-2270 x -7366-2540 x -6583-3683 x -4540


How do I find the factor combinations of the number 16,720,820?

Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 16,720,820, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.

1 16,720,820
-1 -16,720,820

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,720,820.

Example:
1 x 16,720,820 = 16,720,820
and
-1 x -16,720,820 = 16,720,820
Notice both answers equal 16,720,820

With that explanation out of the way, let's continue. Next, we take the number 16,720,820 and divide it by 2:

16,720,820 ÷ 2 = 8,360,410

If the quotient is a whole number, then 2 and 8,360,410 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 8,360,410 16,720,820
-1 -2 -8,360,410 -16,720,820

Now, we try dividing 16,720,820 by 3:

16,720,820 ÷ 3 = 5,573,606.6667

If the quotient is a whole number, then 3 and 5,573,606.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

Here is what our table should look like at this step:

1 2 8,360,410 16,720,820
-1 -2 -8,360,410 -16,720,820

Let's try dividing by 4:

16,720,820 ÷ 4 = 4,180,205

If the quotient is a whole number, then 4 and 4,180,205 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 4 4,180,205 8,360,410 16,720,820
-1 -2 -4 -4,180,205 -8,360,410 16,720,820
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

1245102029581161271452272542904545085806359081,1351,2702,2702,5403,6834,5406,5837,36613,16614,73218,41526,33228,82932,91536,83057,65865,83073,660115,316131,660144,145288,290576,580836,0411,672,0823,344,1644,180,2058,360,41016,720,820
-1-2-4-5-10-20-29-58-116-127-145-227-254-290-454-508-580-635-908-1,135-1,270-2,270-2,540-3,683-4,540-6,583-7,366-13,166-14,732-18,415-26,332-28,829-32,915-36,830-57,658-65,830-73,660-115,316-131,660-144,145-288,290-576,580-836,041-1,672,082-3,344,164-4,180,205-8,360,410-16,720,820

More Examples

Here are some more numbers to try:

16,720,81816,720,81916,720,82116,720,822
Try the factor calculator

Explore more about the number 16,720,820:


Ask a Question