Q: What are the factor combinations of the number 385,033?

 A:
Positive:   1 x 38503311 x 3500317 x 2264929 x 1327771 x 5423187 x 2059319 x 1207493 x 781
Negative: -1 x -385033-11 x -35003-17 x -22649-29 x -13277-71 x -5423-187 x -2059-319 x -1207-493 x -781


How do I find the factor combinations of the number 385,033?

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 385,033, 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.

1 385,033
-1 -385,033

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 385,033.

Example:
1 x 385,033 = 385,033
and
-1 x -385,033 = 385,033
Notice both answers equal 385,033

With that explanation out of the way, let's continue. Next, we take the number 385,033 and divide it by 2:

385,033 ÷ 2 = 192,516.5

If the quotient is a whole number, then 2 and 192,516.5 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:

1 385,033
-1 -385,033

Now, we try dividing 385,033 by 3:

385,033 ÷ 3 = 128,344.3333

If the quotient is a whole number, then 3 and 128,344.3333 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:

1 385,033
-1 -385,033

Let's try dividing by 4:

385,033 ÷ 4 = 96,258.25

If the quotient is a whole number, then 4 and 96,258.25 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:

1 385,033
-1 385,033
Keep dividing by the next highest number until you cannot divide anymore.

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

1111729711873194937811,2072,0595,42313,27722,64935,003385,033
-1-11-17-29-71-187-319-493-781-1,207-2,059-5,423-13,277-22,649-35,003-385,033

More Examples

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