Q: What are the factor combinations of the number 786,875?

 A:
Positive:   1 x 7868755 x 15737525 x 31475125 x 6295625 x 1259
Negative: -1 x -786875-5 x -157375-25 x -31475-125 x -6295-625 x -1259


How do I find the factor combinations of the number 786,875?

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 786,875, 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.

1 786,875
-1 -786,875

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 786,875.

Example:
1 x 786,875 = 786,875
and
-1 x -786,875 = 786,875
Notice both answers equal 786,875

With that explanation out of the way, let's continue. Next, we take the number 786,875 and divide it by 2:

786,875 ÷ 2 = 393,437.5

If the quotient is a whole number, then 2 and 393,437.5 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:

1 786,875
-1 -786,875

Now, we try dividing 786,875 by 3:

786,875 ÷ 3 = 262,291.6667

If the quotient is a whole number, then 3 and 262,291.6667 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:

1 786,875
-1 -786,875

Let's try dividing by 4:

786,875 ÷ 4 = 196,718.75

If the quotient is a whole number, then 4 and 196,718.75 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:

1 786,875
-1 786,875
Keep dividing by the next highest number until you cannot divide anymore.

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

15251256251,2596,29531,475157,375786,875
-1-5-25-125-625-1,259-6,295-31,475-157,375-786,875

More Examples

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