Q: What are the factor combinations of the number 448,987?

 A:
Positive:   1 x 4489877 x 6414111 x 4081717 x 2641149 x 916377 x 5831119 x 3773187 x 2401343 x 1309539 x 833
Negative: -1 x -448987-7 x -64141-11 x -40817-17 x -26411-49 x -9163-77 x -5831-119 x -3773-187 x -2401-343 x -1309-539 x -833


How do I find the factor combinations of the number 448,987?

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 448,987, 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.

1 448,987
-1 -448,987

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 448,987.

Example:
1 x 448,987 = 448,987
and
-1 x -448,987 = 448,987
Notice both answers equal 448,987

With that explanation out of the way, let's continue. Next, we take the number 448,987 and divide it by 2:

448,987 ÷ 2 = 224,493.5

If the quotient is a whole number, then 2 and 224,493.5 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:

1 448,987
-1 -448,987

Now, we try dividing 448,987 by 3:

448,987 ÷ 3 = 149,662.3333

If the quotient is a whole number, then 3 and 149,662.3333 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:

1 448,987
-1 -448,987

Let's try dividing by 4:

448,987 ÷ 4 = 112,246.75

If the quotient is a whole number, then 4 and 112,246.75 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:

1 448,987
-1 448,987
Keep dividing by the next highest number until you cannot divide anymore.

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

17111749771191873435398331,3092,4013,7735,8319,16326,41140,81764,141448,987
-1-7-11-17-49-77-119-187-343-539-833-1,309-2,401-3,773-5,831-9,163-26,411-40,817-64,141-448,987

More Examples

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