Q: What are the factor combinations of the number 2,402,447?

 A:
Positive:   1 x 240244729 x 8284337 x 649311073 x 2239
Negative: -1 x -2402447-29 x -82843-37 x -64931-1073 x -2239


How do I find the factor combinations of the number 2,402,447?

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 2,402,447, 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 2,402,447
-1 -2,402,447

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 2,402,447.

Example:
1 x 2,402,447 = 2,402,447
and
-1 x -2,402,447 = 2,402,447
Notice both answers equal 2,402,447

With that explanation out of the way, let's continue. Next, we take the number 2,402,447 and divide it by 2:

2,402,447 ÷ 2 = 1,201,223.5

If the quotient is a whole number, then 2 and 1,201,223.5 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 2,402,447
-1 -2,402,447

Now, we try dividing 2,402,447 by 3:

2,402,447 ÷ 3 = 800,815.6667

If the quotient is a whole number, then 3 and 800,815.6667 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 2,402,447
-1 -2,402,447

Let's try dividing by 4:

2,402,447 ÷ 4 = 600,611.75

If the quotient is a whole number, then 4 and 600,611.75 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 2,402,447
-1 2,402,447
Keep dividing by the next highest number until you cannot divide anymore.

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

129371,0732,23964,93182,8432,402,447
-1-29-37-1,073-2,239-64,931-82,843-2,402,447

More Examples

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