Q: What are the factor combinations of the number 162,281?

 A:
Positive:   1 x 1622817 x 2318397 x 1673239 x 679
Negative: -1 x -162281-7 x -23183-97 x -1673-239 x -679


How do I find the factor combinations of the number 162,281?

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 162,281, 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.

1 162,281
-1 -162,281

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 162,281.

Example:
1 x 162,281 = 162,281
and
-1 x -162,281 = 162,281
Notice both answers equal 162,281

With that explanation out of the way, let's continue. Next, we take the number 162,281 and divide it by 2:

162,281 ÷ 2 = 81,140.5

If the quotient is a whole number, then 2 and 81,140.5 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:

1 162,281
-1 -162,281

Now, we try dividing 162,281 by 3:

162,281 ÷ 3 = 54,093.6667

If the quotient is a whole number, then 3 and 54,093.6667 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:

1 162,281
-1 -162,281

Let's try dividing by 4:

162,281 ÷ 4 = 40,570.25

If the quotient is a whole number, then 4 and 40,570.25 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:

1 162,281
-1 162,281
Keep dividing by the next highest number until you cannot divide anymore.

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

17972396791,67323,183162,281
-1-7-97-239-679-1,673-23,183-162,281

More Examples

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