Q: What are the factor combinations of the number 166,375?

 A:
Positive:   1 x 1663755 x 3327511 x 1512525 x 665555 x 3025121 x 1375125 x 1331275 x 605
Negative: -1 x -166375-5 x -33275-11 x -15125-25 x -6655-55 x -3025-121 x -1375-125 x -1331-275 x -605


How do I find the factor combinations of the number 166,375?

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 166,375, 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.

1 166,375
-1 -166,375

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 166,375.

Example:
1 x 166,375 = 166,375
and
-1 x -166,375 = 166,375
Notice both answers equal 166,375

With that explanation out of the way, let's continue. Next, we take the number 166,375 and divide it by 2:

166,375 ÷ 2 = 83,187.5

If the quotient is a whole number, then 2 and 83,187.5 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:

1 166,375
-1 -166,375

Now, we try dividing 166,375 by 3:

166,375 ÷ 3 = 55,458.3333

If the quotient is a whole number, then 3 and 55,458.3333 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:

1 166,375
-1 -166,375

Let's try dividing by 4:

166,375 ÷ 4 = 41,593.75

If the quotient is a whole number, then 4 and 41,593.75 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:

1 166,375
-1 166,375
Keep dividing by the next highest number until you cannot divide anymore.

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

151125551211252756051,3311,3753,0256,65515,12533,275166,375
-1-5-11-25-55-121-125-275-605-1,331-1,375-3,025-6,655-15,125-33,275-166,375

More Examples

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