Q: What are the factor combinations of the number 87,893?
A:
Positive:
1 x 8789313 x 6761
Negative:
-1 x -87893-13 x -6761
A:
Positive:
1 x 8789313 x 6761
Negative:
-1 x -87893-13 x -6761
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 87,893, it is easier to work with a table - it's called factoring from the outside in.
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 | 87,893 | |
-1 | -87,893 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 87,893.
Example:
1 x 87,893 = 87,893
and
-1 x -87,893 = 87,893
Notice both answers equal 87,893
With that explanation out of the way, let's continue. Next, we take the number 87,893 and divide it by 2:
87,893 ÷ 2 = 43,946.5
If the quotient is a whole number, then 2 and 43,946.5 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 | 87,893 | |
-1 | -87,893 |
Now, we try dividing 87,893 by 3:
87,893 ÷ 3 = 29,297.6667
If the quotient is a whole number, then 3 and 29,297.6667 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 | 87,893 | |
-1 | -87,893 |
Let's try dividing by 4:
87,893 ÷ 4 = 21,973.25
If the quotient is a whole number, then 4 and 21,973.25 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 | 87,893 | |
-1 | 87,893 |
If you did it right, you will end up with this table:
1 | 13 | 6,761 | 87,893 |
-1 | -13 | -6,761 | -87,893 |
Here are some more numbers to try:
Try the factor calculator