Q: What are the factor combinations of the number 146,791?

 A:
Positive:   1 x 146791181 x 811
Negative: -1 x -146791-181 x -811


How do I find the factor combinations of the number 146,791?

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 146,791, 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.

1 146,791
-1 -146,791

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 146,791.

Example:
1 x 146,791 = 146,791
and
-1 x -146,791 = 146,791
Notice both answers equal 146,791

With that explanation out of the way, let's continue. Next, we take the number 146,791 and divide it by 2:

146,791 ÷ 2 = 73,395.5

If the quotient is a whole number, then 2 and 73,395.5 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:

1 146,791
-1 -146,791

Now, we try dividing 146,791 by 3:

146,791 ÷ 3 = 48,930.3333

If the quotient is a whole number, then 3 and 48,930.3333 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:

1 146,791
-1 -146,791

Let's try dividing by 4:

146,791 ÷ 4 = 36,697.75

If the quotient is a whole number, then 4 and 36,697.75 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:

1 146,791
-1 146,791
Keep dividing by the next highest number until you cannot divide anymore.

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

1181811146,791
-1-181-811-146,791

More Examples

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