Q: What are the factor combinations of the number 708,071?

 A:
Positive:   1 x 7080717 x 10115313 x 5446731 x 2284191 x 7781217 x 3263251 x 2821403 x 1757
Negative: -1 x -708071-7 x -101153-13 x -54467-31 x -22841-91 x -7781-217 x -3263-251 x -2821-403 x -1757


How do I find the factor combinations of the number 708,071?

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 708,071, 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.

1 708,071
-1 -708,071

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 708,071.

Example:
1 x 708,071 = 708,071
and
-1 x -708,071 = 708,071
Notice both answers equal 708,071

With that explanation out of the way, let's continue. Next, we take the number 708,071 and divide it by 2:

708,071 ÷ 2 = 354,035.5

If the quotient is a whole number, then 2 and 354,035.5 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:

1 708,071
-1 -708,071

Now, we try dividing 708,071 by 3:

708,071 ÷ 3 = 236,023.6667

If the quotient is a whole number, then 3 and 236,023.6667 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:

1 708,071
-1 -708,071

Let's try dividing by 4:

708,071 ÷ 4 = 177,017.75

If the quotient is a whole number, then 4 and 177,017.75 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:

1 708,071
-1 708,071
Keep dividing by the next highest number until you cannot divide anymore.

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

171331912172514031,7572,8213,2637,78122,84154,467101,153708,071
-1-7-13-31-91-217-251-403-1,757-2,821-3,263-7,781-22,841-54,467-101,153-708,071

More Examples

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