Q: What are the factor combinations of the number 23,867,417?

 A:
Positive:   1 x 238674177 x 3409631331 x 721072317 x 10301
Negative: -1 x -23867417-7 x -3409631-331 x -72107-2317 x -10301


How do I find the factor combinations of the number 23,867,417?

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 23,867,417, 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 23,867,417
-1 -23,867,417

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 23,867,417.

Example:
1 x 23,867,417 = 23,867,417
and
-1 x -23,867,417 = 23,867,417
Notice both answers equal 23,867,417

With that explanation out of the way, let's continue. Next, we take the number 23,867,417 and divide it by 2:

23,867,417 ÷ 2 = 11,933,708.5

If the quotient is a whole number, then 2 and 11,933,708.5 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 23,867,417
-1 -23,867,417

Now, we try dividing 23,867,417 by 3:

23,867,417 ÷ 3 = 7,955,805.6667

If the quotient is a whole number, then 3 and 7,955,805.6667 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 23,867,417
-1 -23,867,417

Let's try dividing by 4:

23,867,417 ÷ 4 = 5,966,854.25

If the quotient is a whole number, then 4 and 5,966,854.25 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 23,867,417
-1 23,867,417
Keep dividing by the next highest number until you cannot divide anymore.

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

173312,31710,30172,1073,409,63123,867,417
-1-7-331-2,317-10,301-72,107-3,409,631-23,867,417

More Examples

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