A:
Positive:
1 x 7214355 x 14428711 x 6558513 x 5549555 x 1311765 x 11099143 x 5045715 x 1009
Negative:
-1 x -721435-5 x -144287-11 x -65585-13 x -55495-55 x -13117-65 x -11099-143 x -5045-715 x -1009
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 721,435, 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 | 721,435 | |
| -1 | -721,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 721,435.
Example:
1 x 721,435 = 721,435
and
-1 x -721,435 = 721,435
Notice both answers equal 721,435
With that explanation out of the way, let's continue. Next, we take the number 721,435 and divide it by 2:
721,435 ÷ 2 = 360,717.5
If the quotient is a whole number, then 2 and 360,717.5 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 | 721,435 | |
| -1 | -721,435 |
Now, we try dividing 721,435 by 3:
721,435 ÷ 3 = 240,478.3333
If the quotient is a whole number, then 3 and 240,478.3333 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 | 721,435 | |
| -1 | -721,435 |
Let's try dividing by 4:
721,435 ÷ 4 = 180,358.75
If the quotient is a whole number, then 4 and 180,358.75 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 | 721,435 | |
| -1 | 721,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 13 | 55 | 65 | 143 | 715 | 1,009 | 5,045 | 11,099 | 13,117 | 55,495 | 65,585 | 144,287 | 721,435 |
| -1 | -5 | -11 | -13 | -55 | -65 | -143 | -715 | -1,009 | -5,045 | -11,099 | -13,117 | -55,495 | -65,585 | -144,287 | -721,435 |
Here are some more numbers to try:
Try the factor calculator