Q: What are the factor combinations of the number 123,122,676?

 A:
Positive:   1 x 1231226762 x 615613383 x 410408924 x 307806696 x 2052044612 x 1026022373 x 1686612146 x 843306219 x 562204292 x 421653438 x 281102876 x 140551
Negative: -1 x -123122676-2 x -61561338-3 x -41040892-4 x -30780669-6 x -20520446-12 x -10260223-73 x -1686612-146 x -843306-219 x -562204-292 x -421653-438 x -281102-876 x -140551


How do I find the factor combinations of the number 123,122,676?

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 123,122,676, 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.

1 123,122,676
-1 -123,122,676

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 123,122,676.

Example:
1 x 123,122,676 = 123,122,676
and
-1 x -123,122,676 = 123,122,676
Notice both answers equal 123,122,676

With that explanation out of the way, let's continue. Next, we take the number 123,122,676 and divide it by 2:

123,122,676 ÷ 2 = 61,561,338

If the quotient is a whole number, then 2 and 61,561,338 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 61,561,338 123,122,676
-1 -2 -61,561,338 -123,122,676

Now, we try dividing 123,122,676 by 3:

123,122,676 ÷ 3 = 41,040,892

If the quotient is a whole number, then 3 and 41,040,892 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 41,040,892 61,561,338 123,122,676
-1 -2 -3 -41,040,892 -61,561,338 -123,122,676

Let's try dividing by 4:

123,122,676 ÷ 4 = 30,780,669

If the quotient is a whole number, then 4 and 30,780,669 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 30,780,669 41,040,892 61,561,338 123,122,676
-1 -2 -3 -4 -30,780,669 -41,040,892 -61,561,338 123,122,676
Keep dividing by the next highest number until you cannot divide anymore.

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

123461273146219292438876140,551281,102421,653562,204843,3061,686,61210,260,22320,520,44630,780,66941,040,89261,561,338123,122,676
-1-2-3-4-6-12-73-146-219-292-438-876-140,551-281,102-421,653-562,204-843,306-1,686,612-10,260,223-20,520,446-30,780,669-41,040,892-61,561,338-123,122,676

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