Q: What are the factor combinations of the number 358,547?

 A:
Positive:   1 x 3585477 x 5122117 x 2109123 x 15589119 x 3013131 x 2737161 x 2227391 x 917
Negative: -1 x -358547-7 x -51221-17 x -21091-23 x -15589-119 x -3013-131 x -2737-161 x -2227-391 x -917


How do I find the factor combinations of the number 358,547?

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 358,547, 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.

1 358,547
-1 -358,547

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 358,547.

Example:
1 x 358,547 = 358,547
and
-1 x -358,547 = 358,547
Notice both answers equal 358,547

With that explanation out of the way, let's continue. Next, we take the number 358,547 and divide it by 2:

358,547 ÷ 2 = 179,273.5

If the quotient is a whole number, then 2 and 179,273.5 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:

1 358,547
-1 -358,547

Now, we try dividing 358,547 by 3:

358,547 ÷ 3 = 119,515.6667

If the quotient is a whole number, then 3 and 119,515.6667 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:

1 358,547
-1 -358,547

Let's try dividing by 4:

358,547 ÷ 4 = 89,636.75

If the quotient is a whole number, then 4 and 89,636.75 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:

1 358,547
-1 358,547
Keep dividing by the next highest number until you cannot divide anymore.

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

1717231191311613919172,2272,7373,01315,58921,09151,221358,547
-1-7-17-23-119-131-161-391-917-2,227-2,737-3,013-15,589-21,091-51,221-358,547

More Examples

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