Q: What are the factor combinations of the number 782,975?

 A:
Positive:   1 x 7829755 x 15659525 x 31319
Negative: -1 x -782975-5 x -156595-25 x -31319


How do I find the factor combinations of the number 782,975?

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 782,975, 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.

1 782,975
-1 -782,975

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 782,975.

Example:
1 x 782,975 = 782,975
and
-1 x -782,975 = 782,975
Notice both answers equal 782,975

With that explanation out of the way, let's continue. Next, we take the number 782,975 and divide it by 2:

782,975 ÷ 2 = 391,487.5

If the quotient is a whole number, then 2 and 391,487.5 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:

1 782,975
-1 -782,975

Now, we try dividing 782,975 by 3:

782,975 ÷ 3 = 260,991.6667

If the quotient is a whole number, then 3 and 260,991.6667 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:

1 782,975
-1 -782,975

Let's try dividing by 4:

782,975 ÷ 4 = 195,743.75

If the quotient is a whole number, then 4 and 195,743.75 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:

1 782,975
-1 782,975
Keep dividing by the next highest number until you cannot divide anymore.

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

152531,319156,595782,975
-1-5-25-31,319-156,595-782,975

More Examples

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