Q: What are the factor combinations of the number 136,213?

 A:
Positive:   1 x 1362137 x 1945911 x 1238329 x 469761 x 223377 x 1769203 x 671319 x 427
Negative: -1 x -136213-7 x -19459-11 x -12383-29 x -4697-61 x -2233-77 x -1769-203 x -671-319 x -427


How do I find the factor combinations of the number 136,213?

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 136,213, 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.

1 136,213
-1 -136,213

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 136,213.

Example:
1 x 136,213 = 136,213
and
-1 x -136,213 = 136,213
Notice both answers equal 136,213

With that explanation out of the way, let's continue. Next, we take the number 136,213 and divide it by 2:

136,213 ÷ 2 = 68,106.5

If the quotient is a whole number, then 2 and 68,106.5 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:

1 136,213
-1 -136,213

Now, we try dividing 136,213 by 3:

136,213 ÷ 3 = 45,404.3333

If the quotient is a whole number, then 3 and 45,404.3333 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:

1 136,213
-1 -136,213

Let's try dividing by 4:

136,213 ÷ 4 = 34,053.25

If the quotient is a whole number, then 4 and 34,053.25 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:

1 136,213
-1 136,213
Keep dividing by the next highest number until you cannot divide anymore.

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

17112961772033194276711,7692,2334,69712,38319,459136,213
-1-7-11-29-61-77-203-319-427-671-1,769-2,233-4,697-12,383-19,459-136,213

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