Q: What are the factor combinations of the number 363,805?

 A:
Positive:   1 x 3638055 x 7276113 x 2798529 x 1254565 x 5597145 x 2509193 x 1885377 x 965
Negative: -1 x -363805-5 x -72761-13 x -27985-29 x -12545-65 x -5597-145 x -2509-193 x -1885-377 x -965


How do I find the factor combinations of the number 363,805?

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 363,805, 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.

1 363,805
-1 -363,805

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 363,805.

Example:
1 x 363,805 = 363,805
and
-1 x -363,805 = 363,805
Notice both answers equal 363,805

With that explanation out of the way, let's continue. Next, we take the number 363,805 and divide it by 2:

363,805 ÷ 2 = 181,902.5

If the quotient is a whole number, then 2 and 181,902.5 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:

1 363,805
-1 -363,805

Now, we try dividing 363,805 by 3:

363,805 ÷ 3 = 121,268.3333

If the quotient is a whole number, then 3 and 121,268.3333 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:

1 363,805
-1 -363,805

Let's try dividing by 4:

363,805 ÷ 4 = 90,951.25

If the quotient is a whole number, then 4 and 90,951.25 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:

1 363,805
-1 363,805
Keep dividing by the next highest number until you cannot divide anymore.

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

151329651451933779651,8852,5095,59712,54527,98572,761363,805
-1-5-13-29-65-145-193-377-965-1,885-2,509-5,597-12,545-27,985-72,761-363,805

More Examples

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