Q: What are the factor combinations of the number 216,108?

 A:
Positive:   1 x 2161082 x 1080543 x 720364 x 540276 x 360189 x 2401212 x 1800918 x 1200623 x 939627 x 800429 x 745236 x 600346 x 469854 x 400258 x 372669 x 313281 x 266887 x 248492 x 2349108 x 2001116 x 1863138 x 1566162 x 1334174 x 1242207 x 1044261 x 828276 x 783324 x 667348 x 621414 x 522
Negative: -1 x -216108-2 x -108054-3 x -72036-4 x -54027-6 x -36018-9 x -24012-12 x -18009-18 x -12006-23 x -9396-27 x -8004-29 x -7452-36 x -6003-46 x -4698-54 x -4002-58 x -3726-69 x -3132-81 x -2668-87 x -2484-92 x -2349-108 x -2001-116 x -1863-138 x -1566-162 x -1334-174 x -1242-207 x -1044-261 x -828-276 x -783-324 x -667-348 x -621-414 x -522


How do I find the factor combinations of the number 216,108?

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 216,108, 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.

1 216,108
-1 -216,108

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 216,108.

Example:
1 x 216,108 = 216,108
and
-1 x -216,108 = 216,108
Notice both answers equal 216,108

With that explanation out of the way, let's continue. Next, we take the number 216,108 and divide it by 2:

216,108 ÷ 2 = 108,054

If the quotient is a whole number, then 2 and 108,054 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 2 108,054 216,108
-1 -2 -108,054 -216,108

Now, we try dividing 216,108 by 3:

216,108 ÷ 3 = 72,036

If the quotient is a whole number, then 3 and 72,036 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 72,036 108,054 216,108
-1 -2 -3 -72,036 -108,054 -216,108

Let's try dividing by 4:

216,108 ÷ 4 = 54,027

If the quotient is a whole number, then 4 and 54,027 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 54,027 72,036 108,054 216,108
-1 -2 -3 -4 -54,027 -72,036 -108,054 216,108
Keep dividing by the next highest number until you cannot divide anymore.

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

123469121823272936465458698187921081161381621742072612763243484145226216677838281,0441,2421,3341,5661,8632,0012,3492,4842,6683,1323,7264,0024,6986,0037,4528,0049,39612,00618,00924,01236,01854,02772,036108,054216,108
-1-2-3-4-6-9-12-18-23-27-29-36-46-54-58-69-81-87-92-108-116-138-162-174-207-261-276-324-348-414-522-621-667-783-828-1,044-1,242-1,334-1,566-1,863-2,001-2,349-2,484-2,668-3,132-3,726-4,002-4,698-6,003-7,452-8,004-9,396-12,006-18,009-24,012-36,018-54,027-72,036-108,054-216,108

More Examples

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