A:
Positive:
1 x 4040422111 x 367311113 x 310801729 x 1393249143 x 282547319 x 126659377 x 1071734147 x 9743
Negative:
-1 x -40404221-11 x -3673111-13 x -3108017-29 x -1393249-143 x -282547-319 x -126659-377 x -107173-4147 x -9743
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 40,404,221, 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 | 40,404,221 | |
| -1 | -40,404,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,404,221.
Example:
1 x 40,404,221 = 40,404,221
and
-1 x -40,404,221 = 40,404,221
Notice both answers equal 40,404,221
With that explanation out of the way, let's continue. Next, we take the number 40,404,221 and divide it by 2:
40,404,221 ÷ 2 = 20,202,110.5
If the quotient is a whole number, then 2 and 20,202,110.5 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 | 40,404,221 | |
| -1 | -40,404,221 |
Now, we try dividing 40,404,221 by 3:
40,404,221 ÷ 3 = 13,468,073.6667
If the quotient is a whole number, then 3 and 13,468,073.6667 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 | 40,404,221 | |
| -1 | -40,404,221 |
Let's try dividing by 4:
40,404,221 ÷ 4 = 10,101,055.25
If the quotient is a whole number, then 4 and 10,101,055.25 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 | 40,404,221 | |
| -1 | 40,404,221 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 29 | 143 | 319 | 377 | 4,147 | 9,743 | 107,173 | 126,659 | 282,547 | 1,393,249 | 3,108,017 | 3,673,111 | 40,404,221 |
| -1 | -11 | -13 | -29 | -143 | -319 | -377 | -4,147 | -9,743 | -107,173 | -126,659 | -282,547 | -1,393,249 | -3,108,017 | -3,673,111 | -40,404,221 |
Here are some more numbers to try:
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