Q: What are the factor combinations of the number 828,989?

 A:
Positive:   1 x 8289897 x 11842719 x 4363123 x 36043133 x 6233161 x 5149271 x 3059437 x 1897
Negative: -1 x -828989-7 x -118427-19 x -43631-23 x -36043-133 x -6233-161 x -5149-271 x -3059-437 x -1897


How do I find the factor combinations of the number 828,989?

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 828,989, 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.

1 828,989
-1 -828,989

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 828,989.

Example:
1 x 828,989 = 828,989
and
-1 x -828,989 = 828,989
Notice both answers equal 828,989

With that explanation out of the way, let's continue. Next, we take the number 828,989 and divide it by 2:

828,989 ÷ 2 = 414,494.5

If the quotient is a whole number, then 2 and 414,494.5 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:

1 828,989
-1 -828,989

Now, we try dividing 828,989 by 3:

828,989 ÷ 3 = 276,329.6667

If the quotient is a whole number, then 3 and 276,329.6667 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:

1 828,989
-1 -828,989

Let's try dividing by 4:

828,989 ÷ 4 = 207,247.25

If the quotient is a whole number, then 4 and 207,247.25 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:

1 828,989
-1 828,989
Keep dividing by the next highest number until you cannot divide anymore.

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

1719231331612714371,8973,0595,1496,23336,04343,631118,427828,989
-1-7-19-23-133-161-271-437-1,897-3,059-5,149-6,233-36,043-43,631-118,427-828,989

More Examples

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