Q: What are the factor combinations of the number 355,126,343?

 A:
Positive:   1 x 35512634311 x 3228421313 x 27317411113 x 3142711143 x 24834011243 x 2857011469 x 24174716159 x 21977
Negative: -1 x -355126343-11 x -32284213-13 x -27317411-113 x -3142711-143 x -2483401-1243 x -285701-1469 x -241747-16159 x -21977


How do I find the factor combinations of the number 355,126,343?

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 355,126,343, 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.

1 355,126,343
-1 -355,126,343

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 355,126,343.

Example:
1 x 355,126,343 = 355,126,343
and
-1 x -355,126,343 = 355,126,343
Notice both answers equal 355,126,343

With that explanation out of the way, let's continue. Next, we take the number 355,126,343 and divide it by 2:

355,126,343 ÷ 2 = 177,563,171.5

If the quotient is a whole number, then 2 and 177,563,171.5 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:

1 355,126,343
-1 -355,126,343

Now, we try dividing 355,126,343 by 3:

355,126,343 ÷ 3 = 118,375,447.6667

If the quotient is a whole number, then 3 and 118,375,447.6667 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:

1 355,126,343
-1 -355,126,343

Let's try dividing by 4:

355,126,343 ÷ 4 = 88,781,585.75

If the quotient is a whole number, then 4 and 88,781,585.75 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:

1 355,126,343
-1 355,126,343
Keep dividing by the next highest number until you cannot divide anymore.

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

111131131431,2431,46916,15921,977241,747285,7012,483,4013,142,71127,317,41132,284,213355,126,343
-1-11-13-113-143-1,243-1,469-16,159-21,977-241,747-285,701-2,483,401-3,142,711-27,317,411-32,284,213-355,126,343

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