Q: What are the factor combinations of the number 228,985?

 A:
Positive:   1 x 2289855 x 4579741 x 5585205 x 1117
Negative: -1 x -228985-5 x -45797-41 x -5585-205 x -1117


How do I find the factor combinations of the number 228,985?

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 228,985, 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.

1 228,985
-1 -228,985

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 228,985.

Example:
1 x 228,985 = 228,985
and
-1 x -228,985 = 228,985
Notice both answers equal 228,985

With that explanation out of the way, let's continue. Next, we take the number 228,985 and divide it by 2:

228,985 ÷ 2 = 114,492.5

If the quotient is a whole number, then 2 and 114,492.5 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:

1 228,985
-1 -228,985

Now, we try dividing 228,985 by 3:

228,985 ÷ 3 = 76,328.3333

If the quotient is a whole number, then 3 and 76,328.3333 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:

1 228,985
-1 -228,985

Let's try dividing by 4:

228,985 ÷ 4 = 57,246.25

If the quotient is a whole number, then 4 and 57,246.25 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:

1 228,985
-1 228,985
Keep dividing by the next highest number until you cannot divide anymore.

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

15412051,1175,58545,797228,985
-1-5-41-205-1,117-5,585-45,797-228,985

More Examples

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