A:
Positive:
1 x 72400555 x 144801123 x 314785115 x 62957157 x 46115401 x 18055785 x 92232005 x 3611
Negative:
-1 x -7240055-5 x -1448011-23 x -314785-115 x -62957-157 x -46115-401 x -18055-785 x -9223-2005 x -3611
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 7,240,055, 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 | 7,240,055 | |
| -1 | -7,240,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,240,055.
Example:
1 x 7,240,055 = 7,240,055
and
-1 x -7,240,055 = 7,240,055
Notice both answers equal 7,240,055
With that explanation out of the way, let's continue. Next, we take the number 7,240,055 and divide it by 2:
7,240,055 ÷ 2 = 3,620,027.5
If the quotient is a whole number, then 2 and 3,620,027.5 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 | 7,240,055 | |
| -1 | -7,240,055 |
Now, we try dividing 7,240,055 by 3:
7,240,055 ÷ 3 = 2,413,351.6667
If the quotient is a whole number, then 3 and 2,413,351.6667 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 | 7,240,055 | |
| -1 | -7,240,055 |
Let's try dividing by 4:
7,240,055 ÷ 4 = 1,810,013.75
If the quotient is a whole number, then 4 and 1,810,013.75 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 | 7,240,055 | |
| -1 | 7,240,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 157 | 401 | 785 | 2,005 | 3,611 | 9,223 | 18,055 | 46,115 | 62,957 | 314,785 | 1,448,011 | 7,240,055 |
| -1 | -5 | -23 | -115 | -157 | -401 | -785 | -2,005 | -3,611 | -9,223 | -18,055 | -46,115 | -62,957 | -314,785 | -1,448,011 | -7,240,055 |
Here are some more numbers to try:
Try the factor calculator