Q: What are the factor combinations of the number 669,383?

 A:
Positive:   1 x 66938311 x 6085313 x 5149131 x 21593143 x 4681151 x 4433341 x 1963403 x 1661
Negative: -1 x -669383-11 x -60853-13 x -51491-31 x -21593-143 x -4681-151 x -4433-341 x -1963-403 x -1661


How do I find the factor combinations of the number 669,383?

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 669,383, 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.

1 669,383
-1 -669,383

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 669,383.

Example:
1 x 669,383 = 669,383
and
-1 x -669,383 = 669,383
Notice both answers equal 669,383

With that explanation out of the way, let's continue. Next, we take the number 669,383 and divide it by 2:

669,383 ÷ 2 = 334,691.5

If the quotient is a whole number, then 2 and 334,691.5 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:

1 669,383
-1 -669,383

Now, we try dividing 669,383 by 3:

669,383 ÷ 3 = 223,127.6667

If the quotient is a whole number, then 3 and 223,127.6667 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:

1 669,383
-1 -669,383

Let's try dividing by 4:

669,383 ÷ 4 = 167,345.75

If the quotient is a whole number, then 4 and 167,345.75 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:

1 669,383
-1 669,383
Keep dividing by the next highest number until you cannot divide anymore.

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

11113311431513414031,6611,9634,4334,68121,59351,49160,853669,383
-1-11-13-31-143-151-341-403-1,661-1,963-4,433-4,681-21,593-51,491-60,853-669,383

More Examples

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