Q: What are the factor combinations of the number 355,620?

 A:
Positive:   1 x 3556202 x 1778103 x 1185404 x 889055 x 711246 x 5927010 x 3556212 x 2963515 x 2370820 x 1778130 x 1185460 x 5927
Negative: -1 x -355620-2 x -177810-3 x -118540-4 x -88905-5 x -71124-6 x -59270-10 x -35562-12 x -29635-15 x -23708-20 x -17781-30 x -11854-60 x -5927


How do I find the factor combinations of the number 355,620?

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 355,620, 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.

1 355,620
-1 -355,620

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 355,620.

Example:
1 x 355,620 = 355,620
and
-1 x -355,620 = 355,620
Notice both answers equal 355,620

With that explanation out of the way, let's continue. Next, we take the number 355,620 and divide it by 2:

355,620 ÷ 2 = 177,810

If the quotient is a whole number, then 2 and 177,810 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 177,810 355,620
-1 -2 -177,810 -355,620

Now, we try dividing 355,620 by 3:

355,620 ÷ 3 = 118,540

If the quotient is a whole number, then 3 and 118,540 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 118,540 177,810 355,620
-1 -2 -3 -118,540 -177,810 -355,620

Let's try dividing by 4:

355,620 ÷ 4 = 88,905

If the quotient is a whole number, then 4 and 88,905 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 4 88,905 118,540 177,810 355,620
-1 -2 -3 -4 -88,905 -118,540 -177,810 355,620
Keep dividing by the next highest number until you cannot divide anymore.

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

1234561012152030605,92711,85417,78123,70829,63535,56259,27071,12488,905118,540177,810355,620
-1-2-3-4-5-6-10-12-15-20-30-60-5,927-11,854-17,781-23,708-29,635-35,562-59,270-71,124-88,905-118,540-177,810-355,620

More Examples

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