Q: What are the factor combinations of the number 104,809,612?

 A:
Positive:   1 x 1048096122 x 524048064 x 2620240341 x 255633282 x 1278166164 x 639083
Negative: -1 x -104809612-2 x -52404806-4 x -26202403-41 x -2556332-82 x -1278166-164 x -639083


How do I find the factor combinations of the number 104,809,612?

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 104,809,612, 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.

1 104,809,612
-1 -104,809,612

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 104,809,612.

Example:
1 x 104,809,612 = 104,809,612
and
-1 x -104,809,612 = 104,809,612
Notice both answers equal 104,809,612

With that explanation out of the way, let's continue. Next, we take the number 104,809,612 and divide it by 2:

104,809,612 ÷ 2 = 52,404,806

If the quotient is a whole number, then 2 and 52,404,806 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 52,404,806 104,809,612
-1 -2 -52,404,806 -104,809,612

Now, we try dividing 104,809,612 by 3:

104,809,612 ÷ 3 = 34,936,537.3333

If the quotient is a whole number, then 3 and 34,936,537.3333 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 2 52,404,806 104,809,612
-1 -2 -52,404,806 -104,809,612

Let's try dividing by 4:

104,809,612 ÷ 4 = 26,202,403

If the quotient is a whole number, then 4 and 26,202,403 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 26,202,403 52,404,806 104,809,612
-1 -2 -4 -26,202,403 -52,404,806 104,809,612
Keep dividing by the next highest number until you cannot divide anymore.

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

1244182164639,0831,278,1662,556,33226,202,40352,404,806104,809,612
-1-2-4-41-82-164-639,083-1,278,166-2,556,332-26,202,403-52,404,806-104,809,612

More Examples

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