Q: What are the factor combinations of the number 1,553,323?

 A:
Positive:   1 x 15533231087 x 1429
Negative: -1 x -1553323-1087 x -1429


How do I find the factor combinations of the number 1,553,323?

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 1,553,323, 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 1,553,323
-1 -1,553,323

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 1,553,323.

Example:
1 x 1,553,323 = 1,553,323
and
-1 x -1,553,323 = 1,553,323
Notice both answers equal 1,553,323

With that explanation out of the way, let's continue. Next, we take the number 1,553,323 and divide it by 2:

1,553,323 ÷ 2 = 776,661.5

If the quotient is a whole number, then 2 and 776,661.5 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 1,553,323
-1 -1,553,323

Now, we try dividing 1,553,323 by 3:

1,553,323 ÷ 3 = 517,774.3333

If the quotient is a whole number, then 3 and 517,774.3333 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 1,553,323
-1 -1,553,323

Let's try dividing by 4:

1,553,323 ÷ 4 = 388,330.75

If the quotient is a whole number, then 4 and 388,330.75 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 1,553,323
-1 1,553,323
Keep dividing by the next highest number until you cannot divide anymore.

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

11,0871,4291,553,323
-1-1,087-1,429-1,553,323

More Examples

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