Q: What are the factor combinations of the number 148,105?

 A:
Positive:   1 x 1481055 x 2962119 x 779595 x 1559
Negative: -1 x -148105-5 x -29621-19 x -7795-95 x -1559


How do I find the factor combinations of the number 148,105?

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 148,105, 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.

1 148,105
-1 -148,105

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 148,105.

Example:
1 x 148,105 = 148,105
and
-1 x -148,105 = 148,105
Notice both answers equal 148,105

With that explanation out of the way, let's continue. Next, we take the number 148,105 and divide it by 2:

148,105 ÷ 2 = 74,052.5

If the quotient is a whole number, then 2 and 74,052.5 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:

1 148,105
-1 -148,105

Now, we try dividing 148,105 by 3:

148,105 ÷ 3 = 49,368.3333

If the quotient is a whole number, then 3 and 49,368.3333 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:

1 148,105
-1 -148,105

Let's try dividing by 4:

148,105 ÷ 4 = 37,026.25

If the quotient is a whole number, then 4 and 37,026.25 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:

1 148,105
-1 148,105
Keep dividing by the next highest number until you cannot divide anymore.

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

1519951,5597,79529,621148,105
-1-5-19-95-1,559-7,795-29,621-148,105

More Examples

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