Q: What are the factor combinations of the number 136,172,204?

 A:
Positive:   1 x 1361722042 x 680861024 x 340430517 x 1945317214 x 972658628 x 4863293
Negative: -1 x -136172204-2 x -68086102-4 x -34043051-7 x -19453172-14 x -9726586-28 x -4863293


How do I find the factor combinations of the number 136,172,204?

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 136,172,204, 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.

1 136,172,204
-1 -136,172,204

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 136,172,204.

Example:
1 x 136,172,204 = 136,172,204
and
-1 x -136,172,204 = 136,172,204
Notice both answers equal 136,172,204

With that explanation out of the way, let's continue. Next, we take the number 136,172,204 and divide it by 2:

136,172,204 ÷ 2 = 68,086,102

If the quotient is a whole number, then 2 and 68,086,102 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 68,086,102 136,172,204
-1 -2 -68,086,102 -136,172,204

Now, we try dividing 136,172,204 by 3:

136,172,204 ÷ 3 = 45,390,734.6667

If the quotient is a whole number, then 3 and 45,390,734.6667 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 68,086,102 136,172,204
-1 -2 -68,086,102 -136,172,204

Let's try dividing by 4:

136,172,204 ÷ 4 = 34,043,051

If the quotient is a whole number, then 4 and 34,043,051 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 34,043,051 68,086,102 136,172,204
-1 -2 -4 -34,043,051 -68,086,102 136,172,204
Keep dividing by the next highest number until you cannot divide anymore.

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

124714284,863,2939,726,58619,453,17234,043,05168,086,102136,172,204
-1-2-4-7-14-28-4,863,293-9,726,586-19,453,172-34,043,051-68,086,102-136,172,204

More Examples

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