Q: What are the factor combinations of the number 23,971,165?

 A:
Positive:   1 x 239711655 x 4794233661 x 362653305 x 7253
Negative: -1 x -23971165-5 x -4794233-661 x -36265-3305 x -7253


How do I find the factor combinations of the number 23,971,165?

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 23,971,165, 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 23,971,165
-1 -23,971,165

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 23,971,165.

Example:
1 x 23,971,165 = 23,971,165
and
-1 x -23,971,165 = 23,971,165
Notice both answers equal 23,971,165

With that explanation out of the way, let's continue. Next, we take the number 23,971,165 and divide it by 2:

23,971,165 ÷ 2 = 11,985,582.5

If the quotient is a whole number, then 2 and 11,985,582.5 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 23,971,165
-1 -23,971,165

Now, we try dividing 23,971,165 by 3:

23,971,165 ÷ 3 = 7,990,388.3333

If the quotient is a whole number, then 3 and 7,990,388.3333 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 23,971,165
-1 -23,971,165

Let's try dividing by 4:

23,971,165 ÷ 4 = 5,992,791.25

If the quotient is a whole number, then 4 and 5,992,791.25 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 23,971,165
-1 23,971,165
Keep dividing by the next highest number until you cannot divide anymore.

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

156613,3057,25336,2654,794,23323,971,165
-1-5-661-3,305-7,253-36,265-4,794,233-23,971,165

More Examples

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