Q: What are the factor combinations of the number 670,735?

 A:
Positive:   1 x 6707355 x 13414713 x 5159517 x 3945565 x 1031985 x 7891221 x 3035607 x 1105
Negative: -1 x -670735-5 x -134147-13 x -51595-17 x -39455-65 x -10319-85 x -7891-221 x -3035-607 x -1105


How do I find the factor combinations of the number 670,735?

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 670,735, 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.

1 670,735
-1 -670,735

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 670,735.

Example:
1 x 670,735 = 670,735
and
-1 x -670,735 = 670,735
Notice both answers equal 670,735

With that explanation out of the way, let's continue. Next, we take the number 670,735 and divide it by 2:

670,735 ÷ 2 = 335,367.5

If the quotient is a whole number, then 2 and 335,367.5 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:

1 670,735
-1 -670,735

Now, we try dividing 670,735 by 3:

670,735 ÷ 3 = 223,578.3333

If the quotient is a whole number, then 3 and 223,578.3333 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:

1 670,735
-1 -670,735

Let's try dividing by 4:

670,735 ÷ 4 = 167,683.75

If the quotient is a whole number, then 4 and 167,683.75 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:

1 670,735
-1 670,735
Keep dividing by the next highest number until you cannot divide anymore.

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

15131765852216071,1053,0357,89110,31939,45551,595134,147670,735
-1-5-13-17-65-85-221-607-1,105-3,035-7,891-10,319-39,455-51,595-134,147-670,735

More Examples

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