Q: What are the factor combinations of the number 115,225?

 A:
Positive:   1 x 1152255 x 2304511 x 1047525 x 460955 x 2095275 x 419
Negative: -1 x -115225-5 x -23045-11 x -10475-25 x -4609-55 x -2095-275 x -419


How do I find the factor combinations of the number 115,225?

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 115,225, 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.

1 115,225
-1 -115,225

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 115,225.

Example:
1 x 115,225 = 115,225
and
-1 x -115,225 = 115,225
Notice both answers equal 115,225

With that explanation out of the way, let's continue. Next, we take the number 115,225 and divide it by 2:

115,225 ÷ 2 = 57,612.5

If the quotient is a whole number, then 2 and 57,612.5 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:

1 115,225
-1 -115,225

Now, we try dividing 115,225 by 3:

115,225 ÷ 3 = 38,408.3333

If the quotient is a whole number, then 3 and 38,408.3333 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:

1 115,225
-1 -115,225

Let's try dividing by 4:

115,225 ÷ 4 = 28,806.25

If the quotient is a whole number, then 4 and 28,806.25 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:

1 115,225
-1 115,225
Keep dividing by the next highest number until you cannot divide anymore.

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

151125552754192,0954,60910,47523,045115,225
-1-5-11-25-55-275-419-2,095-4,609-10,475-23,045-115,225

More Examples

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