Q: What are the factor combinations of the number 1,201,199?

 A:
Positive:   1 x 120119919 x 63221191 x 6289331 x 3629
Negative: -1 x -1201199-19 x -63221-191 x -6289-331 x -3629


How do I find the factor combinations of the number 1,201,199?

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 1,201,199, 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 1,201,199
-1 -1,201,199

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 1,201,199.

Example:
1 x 1,201,199 = 1,201,199
and
-1 x -1,201,199 = 1,201,199
Notice both answers equal 1,201,199

With that explanation out of the way, let's continue. Next, we take the number 1,201,199 and divide it by 2:

1,201,199 ÷ 2 = 600,599.5

If the quotient is a whole number, then 2 and 600,599.5 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 1,201,199
-1 -1,201,199

Now, we try dividing 1,201,199 by 3:

1,201,199 ÷ 3 = 400,399.6667

If the quotient is a whole number, then 3 and 400,399.6667 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 1,201,199
-1 -1,201,199

Let's try dividing by 4:

1,201,199 ÷ 4 = 300,299.75

If the quotient is a whole number, then 4 and 300,299.75 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 1,201,199
-1 1,201,199
Keep dividing by the next highest number until you cannot divide anymore.

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

1191913313,6296,28963,2211,201,199
-1-19-191-331-3,629-6,289-63,221-1,201,199

More Examples

Here are some more numbers to try:

Try the factor calculator

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