A:
Positive:
1 x 408200755 x 816401519 x 214842525 x 163280395 x 429685361 x 113075475 x 859371805 x 226154523 x 9025
Negative:
-1 x -40820075-5 x -8164015-19 x -2148425-25 x -1632803-95 x -429685-361 x -113075-475 x -85937-1805 x -22615-4523 x -9025
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 40,820,075, 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 | 40,820,075 | |
| -1 | -40,820,075 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,820,075.
Example:
1 x 40,820,075 = 40,820,075
and
-1 x -40,820,075 = 40,820,075
Notice both answers equal 40,820,075
With that explanation out of the way, let's continue. Next, we take the number 40,820,075 and divide it by 2:
40,820,075 ÷ 2 = 20,410,037.5
If the quotient is a whole number, then 2 and 20,410,037.5 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 | 40,820,075 | |
| -1 | -40,820,075 |
Now, we try dividing 40,820,075 by 3:
40,820,075 ÷ 3 = 13,606,691.6667
If the quotient is a whole number, then 3 and 13,606,691.6667 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 | 40,820,075 | |
| -1 | -40,820,075 |
Let's try dividing by 4:
40,820,075 ÷ 4 = 10,205,018.75
If the quotient is a whole number, then 4 and 10,205,018.75 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 | 40,820,075 | |
| -1 | 40,820,075 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 361 | 475 | 1,805 | 4,523 | 9,025 | 22,615 | 85,937 | 113,075 | 429,685 | 1,632,803 | 2,148,425 | 8,164,015 | 40,820,075 |
| -1 | -5 | -19 | -25 | -95 | -361 | -475 | -1,805 | -4,523 | -9,025 | -22,615 | -85,937 | -113,075 | -429,685 | -1,632,803 | -2,148,425 | -8,164,015 | -40,820,075 |
Here are some more numbers to try:
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