A:
Positive:
1 x 407844017 x 582634353 x 769517211 x 193291371 x 109931521 x 782811477 x 276133647 x 11183
Negative:
-1 x -40784401-7 x -5826343-53 x -769517-211 x -193291-371 x -109931-521 x -78281-1477 x -27613-3647 x -11183
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 40,784,401, 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 | 40,784,401 | |
| -1 | -40,784,401 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,784,401.
Example:
1 x 40,784,401 = 40,784,401
and
-1 x -40,784,401 = 40,784,401
Notice both answers equal 40,784,401
With that explanation out of the way, let's continue. Next, we take the number 40,784,401 and divide it by 2:
40,784,401 ÷ 2 = 20,392,200.5
If the quotient is a whole number, then 2 and 20,392,200.5 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 | 40,784,401 | |
| -1 | -40,784,401 |
Now, we try dividing 40,784,401 by 3:
40,784,401 ÷ 3 = 13,594,800.3333
If the quotient is a whole number, then 3 and 13,594,800.3333 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 | 40,784,401 | |
| -1 | -40,784,401 |
Let's try dividing by 4:
40,784,401 ÷ 4 = 10,196,100.25
If the quotient is a whole number, then 4 and 10,196,100.25 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 | 40,784,401 | |
| -1 | 40,784,401 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 211 | 371 | 521 | 1,477 | 3,647 | 11,183 | 27,613 | 78,281 | 109,931 | 193,291 | 769,517 | 5,826,343 | 40,784,401 |
| -1 | -7 | -53 | -211 | -371 | -521 | -1,477 | -3,647 | -11,183 | -27,613 | -78,281 | -109,931 | -193,291 | -769,517 | -5,826,343 | -40,784,401 |
Here are some more numbers to try:
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