Q: What are the factor combinations of the number 24,215,203?

 A:
Positive:   1 x 2421520329 x 835007787 x 307691061 x 22823
Negative: -1 x -24215203-29 x -835007-787 x -30769-1061 x -22823


How do I find the factor combinations of the number 24,215,203?

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 24,215,203, 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 24,215,203
-1 -24,215,203

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 24,215,203.

Example:
1 x 24,215,203 = 24,215,203
and
-1 x -24,215,203 = 24,215,203
Notice both answers equal 24,215,203

With that explanation out of the way, let's continue. Next, we take the number 24,215,203 and divide it by 2:

24,215,203 ÷ 2 = 12,107,601.5

If the quotient is a whole number, then 2 and 12,107,601.5 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 24,215,203
-1 -24,215,203

Now, we try dividing 24,215,203 by 3:

24,215,203 ÷ 3 = 8,071,734.3333

If the quotient is a whole number, then 3 and 8,071,734.3333 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 24,215,203
-1 -24,215,203

Let's try dividing by 4:

24,215,203 ÷ 4 = 6,053,800.75

If the quotient is a whole number, then 4 and 6,053,800.75 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 24,215,203
-1 24,215,203
Keep dividing by the next highest number until you cannot divide anymore.

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

1297871,06122,82330,769835,00724,215,203
-1-29-787-1,061-22,823-30,769-835,007-24,215,203

More Examples

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