Q: What are the factor combinations of the number 907,907?

 A:
Positive:   1 x 9079077 x 12970111 x 8253713 x 6983977 x 1179191 x 9977143 x 6349907 x 1001
Negative: -1 x -907907-7 x -129701-11 x -82537-13 x -69839-77 x -11791-91 x -9977-143 x -6349-907 x -1001


How do I find the factor combinations of the number 907,907?

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 907,907, 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.

1 907,907
-1 -907,907

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 907,907.

Example:
1 x 907,907 = 907,907
and
-1 x -907,907 = 907,907
Notice both answers equal 907,907

With that explanation out of the way, let's continue. Next, we take the number 907,907 and divide it by 2:

907,907 ÷ 2 = 453,953.5

If the quotient is a whole number, then 2 and 453,953.5 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:

1 907,907
-1 -907,907

Now, we try dividing 907,907 by 3:

907,907 ÷ 3 = 302,635.6667

If the quotient is a whole number, then 3 and 302,635.6667 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:

1 907,907
-1 -907,907

Let's try dividing by 4:

907,907 ÷ 4 = 226,976.75

If the quotient is a whole number, then 4 and 226,976.75 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:

1 907,907
-1 907,907
Keep dividing by the next highest number until you cannot divide anymore.

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

17111377911439071,0016,3499,97711,79169,83982,537129,701907,907
-1-7-11-13-77-91-143-907-1,001-6,349-9,977-11,791-69,839-82,537-129,701-907,907

More Examples

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