Q: What are the factor combinations of the number 1,197,361?

 A:
Positive:   1 x 119736111 x 10885117 x 7043319 x 63019187 x 6403209 x 5729323 x 3707337 x 3553
Negative: -1 x -1197361-11 x -108851-17 x -70433-19 x -63019-187 x -6403-209 x -5729-323 x -3707-337 x -3553


How do I find the factor combinations of the number 1,197,361?

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 1,197,361, 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 1,197,361
-1 -1,197,361

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 1,197,361.

Example:
1 x 1,197,361 = 1,197,361
and
-1 x -1,197,361 = 1,197,361
Notice both answers equal 1,197,361

With that explanation out of the way, let's continue. Next, we take the number 1,197,361 and divide it by 2:

1,197,361 ÷ 2 = 598,680.5

If the quotient is a whole number, then 2 and 598,680.5 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 1,197,361
-1 -1,197,361

Now, we try dividing 1,197,361 by 3:

1,197,361 ÷ 3 = 399,120.3333

If the quotient is a whole number, then 3 and 399,120.3333 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 1,197,361
-1 -1,197,361

Let's try dividing by 4:

1,197,361 ÷ 4 = 299,340.25

If the quotient is a whole number, then 4 and 299,340.25 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 1,197,361
-1 1,197,361
Keep dividing by the next highest number until you cannot divide anymore.

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

11117191872093233373,5533,7075,7296,40363,01970,433108,8511,197,361
-1-11-17-19-187-209-323-337-3,553-3,707-5,729-6,403-63,019-70,433-108,851-1,197,361

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