Q: What are the factor combinations of the number 75,725?

 A:
Positive:   1 x 757255 x 1514513 x 582525 x 302965 x 1165233 x 325
Negative: -1 x -75725-5 x -15145-13 x -5825-25 x -3029-65 x -1165-233 x -325


How do I find the factor combinations of the number 75,725?

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 75,725, 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 75,725
-1 -75,725

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 75,725.

Example:
1 x 75,725 = 75,725
and
-1 x -75,725 = 75,725
Notice both answers equal 75,725

With that explanation out of the way, let's continue. Next, we take the number 75,725 and divide it by 2:

75,725 ÷ 2 = 37,862.5

If the quotient is a whole number, then 2 and 37,862.5 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 75,725
-1 -75,725

Now, we try dividing 75,725 by 3:

75,725 ÷ 3 = 25,241.6667

If the quotient is a whole number, then 3 and 25,241.6667 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 75,725
-1 -75,725

Let's try dividing by 4:

75,725 ÷ 4 = 18,931.25

If the quotient is a whole number, then 4 and 18,931.25 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 75,725
-1 75,725
Keep dividing by the next highest number until you cannot divide anymore.

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

151325652333251,1653,0295,82515,14575,725
-1-5-13-25-65-233-325-1,165-3,029-5,825-15,145-75,725

More Examples

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