Q: What are the factor combinations of the number 4,718,117?

 A:
Positive:   1 x 471811779 x 59723
Negative: -1 x -4718117-79 x -59723


How do I find the factor combinations of the number 4,718,117?

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 4,718,117, 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 4,718,117
-1 -4,718,117

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 4,718,117.

Example:
1 x 4,718,117 = 4,718,117
and
-1 x -4,718,117 = 4,718,117
Notice both answers equal 4,718,117

With that explanation out of the way, let's continue. Next, we take the number 4,718,117 and divide it by 2:

4,718,117 ÷ 2 = 2,359,058.5

If the quotient is a whole number, then 2 and 2,359,058.5 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 4,718,117
-1 -4,718,117

Now, we try dividing 4,718,117 by 3:

4,718,117 ÷ 3 = 1,572,705.6667

If the quotient is a whole number, then 3 and 1,572,705.6667 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 4,718,117
-1 -4,718,117

Let's try dividing by 4:

4,718,117 ÷ 4 = 1,179,529.25

If the quotient is a whole number, then 4 and 1,179,529.25 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 4,718,117
-1 4,718,117
Keep dividing by the next highest number until you cannot divide anymore.

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

17959,7234,718,117
-1-79-59,723-4,718,117

More Examples

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