Q: What are the factor combinations of the number 3,113,323?

 A:
Positive:   1 x 31133231559 x 1997
Negative: -1 x -3113323-1559 x -1997


How do I find the factor combinations of the number 3,113,323?

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 3,113,323, 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 3,113,323
-1 -3,113,323

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 3,113,323.

Example:
1 x 3,113,323 = 3,113,323
and
-1 x -3,113,323 = 3,113,323
Notice both answers equal 3,113,323

With that explanation out of the way, let's continue. Next, we take the number 3,113,323 and divide it by 2:

3,113,323 ÷ 2 = 1,556,661.5

If the quotient is a whole number, then 2 and 1,556,661.5 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 3,113,323
-1 -3,113,323

Now, we try dividing 3,113,323 by 3:

3,113,323 ÷ 3 = 1,037,774.3333

If the quotient is a whole number, then 3 and 1,037,774.3333 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 3,113,323
-1 -3,113,323

Let's try dividing by 4:

3,113,323 ÷ 4 = 778,330.75

If the quotient is a whole number, then 4 and 778,330.75 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 3,113,323
-1 3,113,323
Keep dividing by the next highest number until you cannot divide anymore.

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

11,5591,9973,113,323
-1-1,559-1,997-3,113,323

More Examples

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