Q: What are the factor combinations of the number 242,879?

 A:
Positive:   1 x 2428797 x 3469713 x 1868317 x 1428791 x 2669119 x 2041157 x 1547221 x 1099
Negative: -1 x -242879-7 x -34697-13 x -18683-17 x -14287-91 x -2669-119 x -2041-157 x -1547-221 x -1099


How do I find the factor combinations of the number 242,879?

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 242,879, 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.

1 242,879
-1 -242,879

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 242,879.

Example:
1 x 242,879 = 242,879
and
-1 x -242,879 = 242,879
Notice both answers equal 242,879

With that explanation out of the way, let's continue. Next, we take the number 242,879 and divide it by 2:

242,879 ÷ 2 = 121,439.5

If the quotient is a whole number, then 2 and 121,439.5 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:

1 242,879
-1 -242,879

Now, we try dividing 242,879 by 3:

242,879 ÷ 3 = 80,959.6667

If the quotient is a whole number, then 3 and 80,959.6667 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:

1 242,879
-1 -242,879

Let's try dividing by 4:

242,879 ÷ 4 = 60,719.75

If the quotient is a whole number, then 4 and 60,719.75 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:

1 242,879
-1 242,879
Keep dividing by the next highest number until you cannot divide anymore.

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

171317911191572211,0991,5472,0412,66914,28718,68334,697242,879
-1-7-13-17-91-119-157-221-1,099-1,547-2,041-2,669-14,287-18,683-34,697-242,879

More Examples

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