Q: What are the factor combinations of the number 104,243,154?

 A:
Positive:   1 x 1042431542 x 521215773 x 347477186 x 17373859331 x 314934662 x 157467993 x 1049781986 x 52489
Negative: -1 x -104243154-2 x -52121577-3 x -34747718-6 x -17373859-331 x -314934-662 x -157467-993 x -104978-1986 x -52489


How do I find the factor combinations of the number 104,243,154?

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 104,243,154, 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.

1 104,243,154
-1 -104,243,154

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 104,243,154.

Example:
1 x 104,243,154 = 104,243,154
and
-1 x -104,243,154 = 104,243,154
Notice both answers equal 104,243,154

With that explanation out of the way, let's continue. Next, we take the number 104,243,154 and divide it by 2:

104,243,154 ÷ 2 = 52,121,577

If the quotient is a whole number, then 2 and 52,121,577 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 52,121,577 104,243,154
-1 -2 -52,121,577 -104,243,154

Now, we try dividing 104,243,154 by 3:

104,243,154 ÷ 3 = 34,747,718

If the quotient is a whole number, then 3 and 34,747,718 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 34,747,718 52,121,577 104,243,154
-1 -2 -3 -34,747,718 -52,121,577 -104,243,154

Let's try dividing by 4:

104,243,154 ÷ 4 = 26,060,788.5

If the quotient is a whole number, then 4 and 26,060,788.5 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 2 3 34,747,718 52,121,577 104,243,154
-1 -2 -3 -34,747,718 -52,121,577 104,243,154
Keep dividing by the next highest number until you cannot divide anymore.

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

12363316629931,98652,489104,978157,467314,93417,373,85934,747,71852,121,577104,243,154
-1-2-3-6-331-662-993-1,986-52,489-104,978-157,467-314,934-17,373,859-34,747,718-52,121,577-104,243,154

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