A:
Positive:
1 x 400442155 x 800884329 x 138083589 x 449935107 x 374245145 x 276167445 x 89987535 x 74849841 x 476152581 x 155153103 x 129054205 x 9523
Negative:
-1 x -40044215-5 x -8008843-29 x -1380835-89 x -449935-107 x -374245-145 x -276167-445 x -89987-535 x -74849-841 x -47615-2581 x -15515-3103 x -12905-4205 x -9523
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 40,044,215, 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 | 40,044,215 | |
| -1 | -40,044,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,044,215.
Example:
1 x 40,044,215 = 40,044,215
and
-1 x -40,044,215 = 40,044,215
Notice both answers equal 40,044,215
With that explanation out of the way, let's continue. Next, we take the number 40,044,215 and divide it by 2:
40,044,215 ÷ 2 = 20,022,107.5
If the quotient is a whole number, then 2 and 20,022,107.5 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 | 40,044,215 | |
| -1 | -40,044,215 |
Now, we try dividing 40,044,215 by 3:
40,044,215 ÷ 3 = 13,348,071.6667
If the quotient is a whole number, then 3 and 13,348,071.6667 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 | 40,044,215 | |
| -1 | -40,044,215 |
Let's try dividing by 4:
40,044,215 ÷ 4 = 10,011,053.75
If the quotient is a whole number, then 4 and 10,011,053.75 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 | 40,044,215 | |
| -1 | 40,044,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 89 | 107 | 145 | 445 | 535 | 841 | 2,581 | 3,103 | 4,205 | 9,523 | 12,905 | 15,515 | 47,615 | 74,849 | 89,987 | 276,167 | 374,245 | 449,935 | 1,380,835 | 8,008,843 | 40,044,215 |
| -1 | -5 | -29 | -89 | -107 | -145 | -445 | -535 | -841 | -2,581 | -3,103 | -4,205 | -9,523 | -12,905 | -15,515 | -47,615 | -74,849 | -89,987 | -276,167 | -374,245 | -449,935 | -1,380,835 | -8,008,843 | -40,044,215 |
Here are some more numbers to try:
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