Q: What are the factor combinations of the number 500,185?

 A:
Positive:   1 x 5001855 x 1000377 x 7145531 x 1613535 x 14291155 x 3227217 x 2305461 x 1085
Negative: -1 x -500185-5 x -100037-7 x -71455-31 x -16135-35 x -14291-155 x -3227-217 x -2305-461 x -1085


How do I find the factor combinations of the number 500,185?

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 500,185, 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.

1 500,185
-1 -500,185

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 500,185.

Example:
1 x 500,185 = 500,185
and
-1 x -500,185 = 500,185
Notice both answers equal 500,185

With that explanation out of the way, let's continue. Next, we take the number 500,185 and divide it by 2:

500,185 ÷ 2 = 250,092.5

If the quotient is a whole number, then 2 and 250,092.5 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:

1 500,185
-1 -500,185

Now, we try dividing 500,185 by 3:

500,185 ÷ 3 = 166,728.3333

If the quotient is a whole number, then 3 and 166,728.3333 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:

1 500,185
-1 -500,185

Let's try dividing by 4:

500,185 ÷ 4 = 125,046.25

If the quotient is a whole number, then 4 and 125,046.25 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:

1 500,185
-1 500,185
Keep dividing by the next highest number until you cannot divide anymore.

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

15731351552174611,0852,3053,22714,29116,13571,455100,037500,185
-1-5-7-31-35-155-217-461-1,085-2,305-3,227-14,291-16,135-71,455-100,037-500,185

More Examples

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