A:
Positive:
1 x 408735537 x 583907923 x 1777111127 x 321839161 x 253873889 x 459771999 x 204472921 x 13993
Negative:
-1 x -40873553-7 x -5839079-23 x -1777111-127 x -321839-161 x -253873-889 x -45977-1999 x -20447-2921 x -13993
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 40,873,553, 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 | 40,873,553 | |
| -1 | -40,873,553 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,873,553.
Example:
1 x 40,873,553 = 40,873,553
and
-1 x -40,873,553 = 40,873,553
Notice both answers equal 40,873,553
With that explanation out of the way, let's continue. Next, we take the number 40,873,553 and divide it by 2:
40,873,553 ÷ 2 = 20,436,776.5
If the quotient is a whole number, then 2 and 20,436,776.5 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 | 40,873,553 | |
| -1 | -40,873,553 |
Now, we try dividing 40,873,553 by 3:
40,873,553 ÷ 3 = 13,624,517.6667
If the quotient is a whole number, then 3 and 13,624,517.6667 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 | 40,873,553 | |
| -1 | -40,873,553 |
Let's try dividing by 4:
40,873,553 ÷ 4 = 10,218,388.25
If the quotient is a whole number, then 4 and 10,218,388.25 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 | 40,873,553 | |
| -1 | 40,873,553 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 127 | 161 | 889 | 1,999 | 2,921 | 13,993 | 20,447 | 45,977 | 253,873 | 321,839 | 1,777,111 | 5,839,079 | 40,873,553 |
| -1 | -7 | -23 | -127 | -161 | -889 | -1,999 | -2,921 | -13,993 | -20,447 | -45,977 | -253,873 | -321,839 | -1,777,111 | -5,839,079 | -40,873,553 |
Here are some more numbers to try:
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