Q: What are the factor combinations of the number 6,908,665?

 A:
Positive:   1 x 69086655 x 1381733971 x 71151423 x 4855
Negative: -1 x -6908665-5 x -1381733-971 x -7115-1423 x -4855


How do I find the factor combinations of the number 6,908,665?

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 6,908,665, 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 6,908,665
-1 -6,908,665

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 6,908,665.

Example:
1 x 6,908,665 = 6,908,665
and
-1 x -6,908,665 = 6,908,665
Notice both answers equal 6,908,665

With that explanation out of the way, let's continue. Next, we take the number 6,908,665 and divide it by 2:

6,908,665 ÷ 2 = 3,454,332.5

If the quotient is a whole number, then 2 and 3,454,332.5 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 6,908,665
-1 -6,908,665

Now, we try dividing 6,908,665 by 3:

6,908,665 ÷ 3 = 2,302,888.3333

If the quotient is a whole number, then 3 and 2,302,888.3333 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 6,908,665
-1 -6,908,665

Let's try dividing by 4:

6,908,665 ÷ 4 = 1,727,166.25

If the quotient is a whole number, then 4 and 1,727,166.25 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 6,908,665
-1 6,908,665
Keep dividing by the next highest number until you cannot divide anymore.

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

159711,4234,8557,1151,381,7336,908,665
-1-5-971-1,423-4,855-7,115-1,381,733-6,908,665

More Examples

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