Q: What are the factor combinations of the number 385,795?

 A:
Positive:   1 x 3857955 x 7715919 x 2030531 x 1244595 x 4061131 x 2945155 x 2489589 x 655
Negative: -1 x -385795-5 x -77159-19 x -20305-31 x -12445-95 x -4061-131 x -2945-155 x -2489-589 x -655


How do I find the factor combinations of the number 385,795?

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 385,795, 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.

1 385,795
-1 -385,795

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 385,795.

Example:
1 x 385,795 = 385,795
and
-1 x -385,795 = 385,795
Notice both answers equal 385,795

With that explanation out of the way, let's continue. Next, we take the number 385,795 and divide it by 2:

385,795 ÷ 2 = 192,897.5

If the quotient is a whole number, then 2 and 192,897.5 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:

1 385,795
-1 -385,795

Now, we try dividing 385,795 by 3:

385,795 ÷ 3 = 128,598.3333

If the quotient is a whole number, then 3 and 128,598.3333 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:

1 385,795
-1 -385,795

Let's try dividing by 4:

385,795 ÷ 4 = 96,448.75

If the quotient is a whole number, then 4 and 96,448.75 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:

1 385,795
-1 385,795
Keep dividing by the next highest number until you cannot divide anymore.

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

151931951311555896552,4892,9454,06112,44520,30577,159385,795
-1-5-19-31-95-131-155-589-655-2,489-2,945-4,061-12,445-20,305-77,159-385,795

More Examples

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