A:
Positive:
1 x 403455055 x 806910117 x 237326547 x 85841585 x 474653235 x 171683799 x 504953995 x 10099
Negative:
-1 x -40345505-5 x -8069101-17 x -2373265-47 x -858415-85 x -474653-235 x -171683-799 x -50495-3995 x -10099
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 40,345,505, 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 | 40,345,505 | |
| -1 | -40,345,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,345,505.
Example:
1 x 40,345,505 = 40,345,505
and
-1 x -40,345,505 = 40,345,505
Notice both answers equal 40,345,505
With that explanation out of the way, let's continue. Next, we take the number 40,345,505 and divide it by 2:
40,345,505 ÷ 2 = 20,172,752.5
If the quotient is a whole number, then 2 and 20,172,752.5 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 | 40,345,505 | |
| -1 | -40,345,505 |
Now, we try dividing 40,345,505 by 3:
40,345,505 ÷ 3 = 13,448,501.6667
If the quotient is a whole number, then 3 and 13,448,501.6667 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 | 40,345,505 | |
| -1 | -40,345,505 |
Let's try dividing by 4:
40,345,505 ÷ 4 = 10,086,376.25
If the quotient is a whole number, then 4 and 10,086,376.25 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 | 40,345,505 | |
| -1 | 40,345,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 47 | 85 | 235 | 799 | 3,995 | 10,099 | 50,495 | 171,683 | 474,653 | 858,415 | 2,373,265 | 8,069,101 | 40,345,505 |
| -1 | -5 | -17 | -47 | -85 | -235 | -799 | -3,995 | -10,099 | -50,495 | -171,683 | -474,653 | -858,415 | -2,373,265 | -8,069,101 | -40,345,505 |
Here are some more numbers to try:
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