Q: What are the factor combinations of the number 17,801,179?

 A:
Positive:   1 x 1780117911 x 1618289149 x 1194711639 x 10861
Negative: -1 x -17801179-11 x -1618289-149 x -119471-1639 x -10861


How do I find the factor combinations of the number 17,801,179?

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 17,801,179, 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 17,801,179
-1 -17,801,179

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 17,801,179.

Example:
1 x 17,801,179 = 17,801,179
and
-1 x -17,801,179 = 17,801,179
Notice both answers equal 17,801,179

With that explanation out of the way, let's continue. Next, we take the number 17,801,179 and divide it by 2:

17,801,179 ÷ 2 = 8,900,589.5

If the quotient is a whole number, then 2 and 8,900,589.5 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 17,801,179
-1 -17,801,179

Now, we try dividing 17,801,179 by 3:

17,801,179 ÷ 3 = 5,933,726.3333

If the quotient is a whole number, then 3 and 5,933,726.3333 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 17,801,179
-1 -17,801,179

Let's try dividing by 4:

17,801,179 ÷ 4 = 4,450,294.75

If the quotient is a whole number, then 4 and 4,450,294.75 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 17,801,179
-1 17,801,179
Keep dividing by the next highest number until you cannot divide anymore.

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

1111491,63910,861119,4711,618,28917,801,179
-1-11-149-1,639-10,861-119,471-1,618,289-17,801,179

More Examples

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