Q: What are the factor combinations of the number 152,711?

 A:
Positive:   1 x 15271113 x 1174717 x 8983221 x 691
Negative: -1 x -152711-13 x -11747-17 x -8983-221 x -691


How do I find the factor combinations of the number 152,711?

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 152,711, 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.

1 152,711
-1 -152,711

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 152,711.

Example:
1 x 152,711 = 152,711
and
-1 x -152,711 = 152,711
Notice both answers equal 152,711

With that explanation out of the way, let's continue. Next, we take the number 152,711 and divide it by 2:

152,711 ÷ 2 = 76,355.5

If the quotient is a whole number, then 2 and 76,355.5 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:

1 152,711
-1 -152,711

Now, we try dividing 152,711 by 3:

152,711 ÷ 3 = 50,903.6667

If the quotient is a whole number, then 3 and 50,903.6667 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:

1 152,711
-1 -152,711

Let's try dividing by 4:

152,711 ÷ 4 = 38,177.75

If the quotient is a whole number, then 4 and 38,177.75 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:

1 152,711
-1 152,711
Keep dividing by the next highest number until you cannot divide anymore.

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

113172216918,98311,747152,711
-1-13-17-221-691-8,983-11,747-152,711

More Examples

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