Q: What are the factor combinations of the number 148,393?

 A:
Positive:   1 x 1483937 x 2119917 x 872929 x 511743 x 3451119 x 1247203 x 731301 x 493
Negative: -1 x -148393-7 x -21199-17 x -8729-29 x -5117-43 x -3451-119 x -1247-203 x -731-301 x -493


How do I find the factor combinations of the number 148,393?

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 148,393, 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.

1 148,393
-1 -148,393

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 148,393.

Example:
1 x 148,393 = 148,393
and
-1 x -148,393 = 148,393
Notice both answers equal 148,393

With that explanation out of the way, let's continue. Next, we take the number 148,393 and divide it by 2:

148,393 ÷ 2 = 74,196.5

If the quotient is a whole number, then 2 and 74,196.5 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:

1 148,393
-1 -148,393

Now, we try dividing 148,393 by 3:

148,393 ÷ 3 = 49,464.3333

If the quotient is a whole number, then 3 and 49,464.3333 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:

1 148,393
-1 -148,393

Let's try dividing by 4:

148,393 ÷ 4 = 37,098.25

If the quotient is a whole number, then 4 and 37,098.25 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:

1 148,393
-1 148,393
Keep dividing by the next highest number until you cannot divide anymore.

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

171729431192033014937311,2473,4515,1178,72921,199148,393
-1-7-17-29-43-119-203-301-493-731-1,247-3,451-5,117-8,729-21,199-148,393

More Examples

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