Q: What are the factor combinations of the number 238,745?

 A:
Positive:   1 x 2387455 x 4774913 x 1836565 x 3673
Negative: -1 x -238745-5 x -47749-13 x -18365-65 x -3673


How do I find the factor combinations of the number 238,745?

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 238,745, 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.

1 238,745
-1 -238,745

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 238,745.

Example:
1 x 238,745 = 238,745
and
-1 x -238,745 = 238,745
Notice both answers equal 238,745

With that explanation out of the way, let's continue. Next, we take the number 238,745 and divide it by 2:

238,745 ÷ 2 = 119,372.5

If the quotient is a whole number, then 2 and 119,372.5 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:

1 238,745
-1 -238,745

Now, we try dividing 238,745 by 3:

238,745 ÷ 3 = 79,581.6667

If the quotient is a whole number, then 3 and 79,581.6667 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:

1 238,745
-1 -238,745

Let's try dividing by 4:

238,745 ÷ 4 = 59,686.25

If the quotient is a whole number, then 4 and 59,686.25 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:

1 238,745
-1 238,745
Keep dividing by the next highest number until you cannot divide anymore.

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

1513653,67318,36547,749238,745
-1-5-13-65-3,673-18,365-47,749-238,745

More Examples

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