Q: What are the factor combinations of the number 16,826,173?

 A:
Positive:   1 x 168261737 x 240373913 x 129432191 x 184903
Negative: -1 x -16826173-7 x -2403739-13 x -1294321-91 x -184903


How do I find the factor combinations of the number 16,826,173?

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 16,826,173, 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 16,826,173
-1 -16,826,173

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 16,826,173.

Example:
1 x 16,826,173 = 16,826,173
and
-1 x -16,826,173 = 16,826,173
Notice both answers equal 16,826,173

With that explanation out of the way, let's continue. Next, we take the number 16,826,173 and divide it by 2:

16,826,173 ÷ 2 = 8,413,086.5

If the quotient is a whole number, then 2 and 8,413,086.5 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 16,826,173
-1 -16,826,173

Now, we try dividing 16,826,173 by 3:

16,826,173 ÷ 3 = 5,608,724.3333

If the quotient is a whole number, then 3 and 5,608,724.3333 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 16,826,173
-1 -16,826,173

Let's try dividing by 4:

16,826,173 ÷ 4 = 4,206,543.25

If the quotient is a whole number, then 4 and 4,206,543.25 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 16,826,173
-1 16,826,173
Keep dividing by the next highest number until you cannot divide anymore.

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

171391184,9031,294,3212,403,73916,826,173
-1-7-13-91-184,903-1,294,321-2,403,739-16,826,173

More Examples

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