Q: What are the factor combinations of the number 7,975?

 A:
Positive:   1 x 79755 x 159511 x 72525 x 31929 x 27555 x 145
Negative: -1 x -7975-5 x -1595-11 x -725-25 x -319-29 x -275-55 x -145


How do I find the factor combinations of the number 7,975?

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 7,975, 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 7,975
-1 -7,975

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 7,975.

Example:
1 x 7,975 = 7,975
and
-1 x -7,975 = 7,975
Notice both answers equal 7,975

With that explanation out of the way, let's continue. Next, we take the number 7,975 and divide it by 2:

7,975 ÷ 2 = 3,987.5

If the quotient is a whole number, then 2 and 3,987.5 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 7,975
-1 -7,975

Now, we try dividing 7,975 by 3:

7,975 ÷ 3 = 2,658.3333

If the quotient is a whole number, then 3 and 2,658.3333 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 7,975
-1 -7,975

Let's try dividing by 4:

7,975 ÷ 4 = 1,993.75

If the quotient is a whole number, then 4 and 1,993.75 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 7,975
-1 7,975
Keep dividing by the next highest number until you cannot divide anymore.

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

15112529551452753197251,5957,975
-1-5-11-25-29-55-145-275-319-725-1,595-7,975

More Examples

Here are some more numbers to try:

Try the factor calculator

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