Q: What are the factor combinations of the number 107,185?

 A:
Positive:   1 x 1071855 x 2143713 x 824517 x 630565 x 164985 x 126197 x 1105221 x 485
Negative: -1 x -107185-5 x -21437-13 x -8245-17 x -6305-65 x -1649-85 x -1261-97 x -1105-221 x -485


How do I find the factor combinations of the number 107,185?

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 107,185, 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.

1 107,185
-1 -107,185

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 107,185.

Example:
1 x 107,185 = 107,185
and
-1 x -107,185 = 107,185
Notice both answers equal 107,185

With that explanation out of the way, let's continue. Next, we take the number 107,185 and divide it by 2:

107,185 ÷ 2 = 53,592.5

If the quotient is a whole number, then 2 and 53,592.5 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:

1 107,185
-1 -107,185

Now, we try dividing 107,185 by 3:

107,185 ÷ 3 = 35,728.3333

If the quotient is a whole number, then 3 and 35,728.3333 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:

1 107,185
-1 -107,185

Let's try dividing by 4:

107,185 ÷ 4 = 26,796.25

If the quotient is a whole number, then 4 and 26,796.25 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:

1 107,185
-1 107,185
Keep dividing by the next highest number until you cannot divide anymore.

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

1513176585972214851,1051,2611,6496,3058,24521,437107,185
-1-5-13-17-65-85-97-221-485-1,105-1,261-1,649-6,305-8,245-21,437-107,185

More Examples

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