A:
Positive:
1 x 404455455 x 80891097 x 577793531 x 130469535 x 1155587155 x 260939217 x 1863851085 x 37277
Negative:
-1 x -40445545-5 x -8089109-7 x -5777935-31 x -1304695-35 x -1155587-155 x -260939-217 x -186385-1085 x -37277
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 40,445,545, 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 | 40,445,545 | |
| -1 | -40,445,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,445,545.
Example:
1 x 40,445,545 = 40,445,545
and
-1 x -40,445,545 = 40,445,545
Notice both answers equal 40,445,545
With that explanation out of the way, let's continue. Next, we take the number 40,445,545 and divide it by 2:
40,445,545 ÷ 2 = 20,222,772.5
If the quotient is a whole number, then 2 and 20,222,772.5 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 | 40,445,545 | |
| -1 | -40,445,545 |
Now, we try dividing 40,445,545 by 3:
40,445,545 ÷ 3 = 13,481,848.3333
If the quotient is a whole number, then 3 and 13,481,848.3333 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 | 40,445,545 | |
| -1 | -40,445,545 |
Let's try dividing by 4:
40,445,545 ÷ 4 = 10,111,386.25
If the quotient is a whole number, then 4 and 10,111,386.25 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 | 40,445,545 | |
| -1 | 40,445,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 37,277 | 186,385 | 260,939 | 1,155,587 | 1,304,695 | 5,777,935 | 8,089,109 | 40,445,545 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -37,277 | -186,385 | -260,939 | -1,155,587 | -1,304,695 | -5,777,935 | -8,089,109 | -40,445,545 |
Here are some more numbers to try:
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