A:
Positive:
1 x 71105455 x 142210913 x 54696565 x 109393139 x 51155695 x 10231787 x 90351807 x 3935
Negative:
-1 x -7110545-5 x -1422109-13 x -546965-65 x -109393-139 x -51155-695 x -10231-787 x -9035-1807 x -3935
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 7,110,545, 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 | 7,110,545 | |
| -1 | -7,110,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,110,545.
Example:
1 x 7,110,545 = 7,110,545
and
-1 x -7,110,545 = 7,110,545
Notice both answers equal 7,110,545
With that explanation out of the way, let's continue. Next, we take the number 7,110,545 and divide it by 2:
7,110,545 ÷ 2 = 3,555,272.5
If the quotient is a whole number, then 2 and 3,555,272.5 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 | 7,110,545 | |
| -1 | -7,110,545 |
Now, we try dividing 7,110,545 by 3:
7,110,545 ÷ 3 = 2,370,181.6667
If the quotient is a whole number, then 3 and 2,370,181.6667 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 | 7,110,545 | |
| -1 | -7,110,545 |
Let's try dividing by 4:
7,110,545 ÷ 4 = 1,777,636.25
If the quotient is a whole number, then 4 and 1,777,636.25 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 | 7,110,545 | |
| -1 | 7,110,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 139 | 695 | 787 | 1,807 | 3,935 | 9,035 | 10,231 | 51,155 | 109,393 | 546,965 | 1,422,109 | 7,110,545 |
| -1 | -5 | -13 | -65 | -139 | -695 | -787 | -1,807 | -3,935 | -9,035 | -10,231 | -51,155 | -109,393 | -546,965 | -1,422,109 | -7,110,545 |
Here are some more numbers to try:
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