Q: What are the factor combinations of the number 870,209?
A:
Positive:
1 x 870209373 x 2333
Negative:
-1 x -870209-373 x -2333
A:
Positive:
1 x 870209373 x 2333
Negative:
-1 x -870209-373 x -2333
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 870,209, 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 | 870,209 | |
-1 | -870,209 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 870,209.
Example:
1 x 870,209 = 870,209
and
-1 x -870,209 = 870,209
Notice both answers equal 870,209
With that explanation out of the way, let's continue. Next, we take the number 870,209 and divide it by 2:
870,209 ÷ 2 = 435,104.5
If the quotient is a whole number, then 2 and 435,104.5 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 | 870,209 | |
-1 | -870,209 |
Now, we try dividing 870,209 by 3:
870,209 ÷ 3 = 290,069.6667
If the quotient is a whole number, then 3 and 290,069.6667 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 | 870,209 | |
-1 | -870,209 |
Let's try dividing by 4:
870,209 ÷ 4 = 217,552.25
If the quotient is a whole number, then 4 and 217,552.25 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 | 870,209 | |
-1 | 870,209 |
If you did it right, you will end up with this table:
1 | 373 | 2,333 | 870,209 |
-1 | -373 | -2,333 | -870,209 |
Here are some more numbers to try:
Try the factor calculator