Q: What are the factor combinations of the number 107,485?

 A:
Positive:   1 x 1074855 x 214977 x 1535535 x 307137 x 290583 x 1295185 x 581259 x 415
Negative: -1 x -107485-5 x -21497-7 x -15355-35 x -3071-37 x -2905-83 x -1295-185 x -581-259 x -415


How do I find the factor combinations of the number 107,485?

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 107,485, 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.

1 107,485
-1 -107,485

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 107,485.

Example:
1 x 107,485 = 107,485
and
-1 x -107,485 = 107,485
Notice both answers equal 107,485

With that explanation out of the way, let's continue. Next, we take the number 107,485 and divide it by 2:

107,485 ÷ 2 = 53,742.5

If the quotient is a whole number, then 2 and 53,742.5 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:

1 107,485
-1 -107,485

Now, we try dividing 107,485 by 3:

107,485 ÷ 3 = 35,828.3333

If the quotient is a whole number, then 3 and 35,828.3333 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:

1 107,485
-1 -107,485

Let's try dividing by 4:

107,485 ÷ 4 = 26,871.25

If the quotient is a whole number, then 4 and 26,871.25 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:

1 107,485
-1 107,485
Keep dividing by the next highest number until you cannot divide anymore.

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

1573537831852594155811,2952,9053,07115,35521,497107,485
-1-5-7-35-37-83-185-259-415-581-1,295-2,905-3,071-15,355-21,497-107,485

More Examples

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