Q: What are the factor combinations of the number 152,285?

 A:
Positive:   1 x 1522855 x 304577 x 2175519 x 801535 x 435195 x 1603133 x 1145229 x 665
Negative: -1 x -152285-5 x -30457-7 x -21755-19 x -8015-35 x -4351-95 x -1603-133 x -1145-229 x -665


How do I find the factor combinations of the number 152,285?

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 152,285, 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.

1 152,285
-1 -152,285

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 152,285.

Example:
1 x 152,285 = 152,285
and
-1 x -152,285 = 152,285
Notice both answers equal 152,285

With that explanation out of the way, let's continue. Next, we take the number 152,285 and divide it by 2:

152,285 ÷ 2 = 76,142.5

If the quotient is a whole number, then 2 and 76,142.5 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:

1 152,285
-1 -152,285

Now, we try dividing 152,285 by 3:

152,285 ÷ 3 = 50,761.6667

If the quotient is a whole number, then 3 and 50,761.6667 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:

1 152,285
-1 -152,285

Let's try dividing by 4:

152,285 ÷ 4 = 38,071.25

If the quotient is a whole number, then 4 and 38,071.25 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:

1 152,285
-1 152,285
Keep dividing by the next highest number until you cannot divide anymore.

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

1571935951332296651,1451,6034,3518,01521,75530,457152,285
-1-5-7-19-35-95-133-229-665-1,145-1,603-4,351-8,015-21,755-30,457-152,285

More Examples

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