Q: What are the factor combinations of the number 1,396,357?

 A:
Positive:   1 x 139635771 x 19667277 x 5041
Negative: -1 x -1396357-71 x -19667-277 x -5041


How do I find the factor combinations of the number 1,396,357?

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 1,396,357, 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 1,396,357
-1 -1,396,357

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 1,396,357.

Example:
1 x 1,396,357 = 1,396,357
and
-1 x -1,396,357 = 1,396,357
Notice both answers equal 1,396,357

With that explanation out of the way, let's continue. Next, we take the number 1,396,357 and divide it by 2:

1,396,357 ÷ 2 = 698,178.5

If the quotient is a whole number, then 2 and 698,178.5 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 1,396,357
-1 -1,396,357

Now, we try dividing 1,396,357 by 3:

1,396,357 ÷ 3 = 465,452.3333

If the quotient is a whole number, then 3 and 465,452.3333 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 1,396,357
-1 -1,396,357

Let's try dividing by 4:

1,396,357 ÷ 4 = 349,089.25

If the quotient is a whole number, then 4 and 349,089.25 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 1,396,357
-1 1,396,357
Keep dividing by the next highest number until you cannot divide anymore.

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

1712775,04119,6671,396,357
-1-71-277-5,041-19,667-1,396,357

More Examples

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