Q: What are the factor combinations of the number 625,735?

 A:
Positive:   1 x 6257355 x 12514711 x 5688531 x 2018555 x 11377155 x 4037341 x 1835367 x 1705
Negative: -1 x -625735-5 x -125147-11 x -56885-31 x -20185-55 x -11377-155 x -4037-341 x -1835-367 x -1705


How do I find the factor combinations of the number 625,735?

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 625,735, 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.

1 625,735
-1 -625,735

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 625,735.

Example:
1 x 625,735 = 625,735
and
-1 x -625,735 = 625,735
Notice both answers equal 625,735

With that explanation out of the way, let's continue. Next, we take the number 625,735 and divide it by 2:

625,735 ÷ 2 = 312,867.5

If the quotient is a whole number, then 2 and 312,867.5 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:

1 625,735
-1 -625,735

Now, we try dividing 625,735 by 3:

625,735 ÷ 3 = 208,578.3333

If the quotient is a whole number, then 3 and 208,578.3333 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:

1 625,735
-1 -625,735

Let's try dividing by 4:

625,735 ÷ 4 = 156,433.75

If the quotient is a whole number, then 4 and 156,433.75 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:

1 625,735
-1 625,735
Keep dividing by the next highest number until you cannot divide anymore.

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

151131551553413671,7051,8354,03711,37720,18556,885125,147625,735
-1-5-11-31-55-155-341-367-1,705-1,835-4,037-11,377-20,185-56,885-125,147-625,735

More Examples

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