Q: What are the factor combinations of the number 16,871,700?

 A:
Positive:   1 x 168717002 x 84358503 x 56239004 x 42179255 x 33743406 x 281195010 x 168717012 x 140597515 x 112478020 x 84358525 x 67486830 x 56239050 x 33743460 x 28119575 x 224956100 x 168717150 x 112478300 x 56239
Negative: -1 x -16871700-2 x -8435850-3 x -5623900-4 x -4217925-5 x -3374340-6 x -2811950-10 x -1687170-12 x -1405975-15 x -1124780-20 x -843585-25 x -674868-30 x -562390-50 x -337434-60 x -281195-75 x -224956-100 x -168717-150 x -112478-300 x -56239


How do I find the factor combinations of the number 16,871,700?

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 16,871,700, 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 16,871,700
-1 -16,871,700

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 16,871,700.

Example:
1 x 16,871,700 = 16,871,700
and
-1 x -16,871,700 = 16,871,700
Notice both answers equal 16,871,700

With that explanation out of the way, let's continue. Next, we take the number 16,871,700 and divide it by 2:

16,871,700 ÷ 2 = 8,435,850

If the quotient is a whole number, then 2 and 8,435,850 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 8,435,850 16,871,700
-1 -2 -8,435,850 -16,871,700

Now, we try dividing 16,871,700 by 3:

16,871,700 ÷ 3 = 5,623,900

If the quotient is a whole number, then 3 and 5,623,900 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 3 5,623,900 8,435,850 16,871,700
-1 -2 -3 -5,623,900 -8,435,850 -16,871,700

Let's try dividing by 4:

16,871,700 ÷ 4 = 4,217,925

If the quotient is a whole number, then 4 and 4,217,925 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 3 4 4,217,925 5,623,900 8,435,850 16,871,700
-1 -2 -3 -4 -4,217,925 -5,623,900 -8,435,850 16,871,700
Keep dividing by the next highest number until you cannot divide anymore.

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

12345610121520253050607510015030056,239112,478168,717224,956281,195337,434562,390674,868843,5851,124,7801,405,9751,687,1702,811,9503,374,3404,217,9255,623,9008,435,85016,871,700
-1-2-3-4-5-6-10-12-15-20-25-30-50-60-75-100-150-300-56,239-112,478-168,717-224,956-281,195-337,434-562,390-674,868-843,585-1,124,780-1,405,975-1,687,170-2,811,950-3,374,340-4,217,925-5,623,900-8,435,850-16,871,700

More Examples

Here are some more numbers to try:

16,871,69816,871,69916,871,70116,871,702
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