Q: What are the factor combinations of the number 149,765?

 A:
Positive:   1 x 1497655 x 299537 x 2139511 x 1361535 x 427955 x 272377 x 1945385 x 389
Negative: -1 x -149765-5 x -29953-7 x -21395-11 x -13615-35 x -4279-55 x -2723-77 x -1945-385 x -389


How do I find the factor combinations of the number 149,765?

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 149,765, 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.

1 149,765
-1 -149,765

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 149,765.

Example:
1 x 149,765 = 149,765
and
-1 x -149,765 = 149,765
Notice both answers equal 149,765

With that explanation out of the way, let's continue. Next, we take the number 149,765 and divide it by 2:

149,765 ÷ 2 = 74,882.5

If the quotient is a whole number, then 2 and 74,882.5 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:

1 149,765
-1 -149,765

Now, we try dividing 149,765 by 3:

149,765 ÷ 3 = 49,921.6667

If the quotient is a whole number, then 3 and 49,921.6667 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:

1 149,765
-1 -149,765

Let's try dividing by 4:

149,765 ÷ 4 = 37,441.25

If the quotient is a whole number, then 4 and 37,441.25 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:

1 149,765
-1 149,765
Keep dividing by the next highest number until you cannot divide anymore.

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

157113555773853891,9452,7234,27913,61521,39529,953149,765
-1-5-7-11-35-55-77-385-389-1,945-2,723-4,279-13,615-21,395-29,953-149,765

More Examples

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