Q: What are the factor combinations of the number 682,115?

 A:
Positive:   1 x 6821155 x 1364237 x 9744535 x 19489
Negative: -1 x -682115-5 x -136423-7 x -97445-35 x -19489


How do I find the factor combinations of the number 682,115?

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 682,115, 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.

1 682,115
-1 -682,115

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 682,115.

Example:
1 x 682,115 = 682,115
and
-1 x -682,115 = 682,115
Notice both answers equal 682,115

With that explanation out of the way, let's continue. Next, we take the number 682,115 and divide it by 2:

682,115 ÷ 2 = 341,057.5

If the quotient is a whole number, then 2 and 341,057.5 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:

1 682,115
-1 -682,115

Now, we try dividing 682,115 by 3:

682,115 ÷ 3 = 227,371.6667

If the quotient is a whole number, then 3 and 227,371.6667 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:

1 682,115
-1 -682,115

Let's try dividing by 4:

682,115 ÷ 4 = 170,528.75

If the quotient is a whole number, then 4 and 170,528.75 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:

1 682,115
-1 682,115
Keep dividing by the next highest number until you cannot divide anymore.

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

1573519,48997,445136,423682,115
-1-5-7-35-19,489-97,445-136,423-682,115

More Examples

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