A:
Positive:
1 x 405022037 x 578602947 x 861749307 x 131929329 x 123107401 x 1010032149 x 188472807 x 14429
Negative:
-1 x -40502203-7 x -5786029-47 x -861749-307 x -131929-329 x -123107-401 x -101003-2149 x -18847-2807 x -14429
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 40,502,203, 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 | 40,502,203 | |
| -1 | -40,502,203 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,502,203.
Example:
1 x 40,502,203 = 40,502,203
and
-1 x -40,502,203 = 40,502,203
Notice both answers equal 40,502,203
With that explanation out of the way, let's continue. Next, we take the number 40,502,203 and divide it by 2:
40,502,203 ÷ 2 = 20,251,101.5
If the quotient is a whole number, then 2 and 20,251,101.5 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 | 40,502,203 | |
| -1 | -40,502,203 |
Now, we try dividing 40,502,203 by 3:
40,502,203 ÷ 3 = 13,500,734.3333
If the quotient is a whole number, then 3 and 13,500,734.3333 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 | 40,502,203 | |
| -1 | -40,502,203 |
Let's try dividing by 4:
40,502,203 ÷ 4 = 10,125,550.75
If the quotient is a whole number, then 4 and 10,125,550.75 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 | 40,502,203 | |
| -1 | 40,502,203 |
If you did it right, you will end up with this table:
| 1 | 7 | 47 | 307 | 329 | 401 | 2,149 | 2,807 | 14,429 | 18,847 | 101,003 | 123,107 | 131,929 | 861,749 | 5,786,029 | 40,502,203 |
| -1 | -7 | -47 | -307 | -329 | -401 | -2,149 | -2,807 | -14,429 | -18,847 | -101,003 | -123,107 | -131,929 | -861,749 | -5,786,029 | -40,502,203 |
Here are some more numbers to try:
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