A:
Positive:
1 x 402644455 x 805288913 x 309726565 x 619453509 x 791051217 x 330852545 x 158216085 x 6617
Negative:
-1 x -40264445-5 x -8052889-13 x -3097265-65 x -619453-509 x -79105-1217 x -33085-2545 x -15821-6085 x -6617
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 40,264,445, 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 | 40,264,445 | |
| -1 | -40,264,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,264,445.
Example:
1 x 40,264,445 = 40,264,445
and
-1 x -40,264,445 = 40,264,445
Notice both answers equal 40,264,445
With that explanation out of the way, let's continue. Next, we take the number 40,264,445 and divide it by 2:
40,264,445 ÷ 2 = 20,132,222.5
If the quotient is a whole number, then 2 and 20,132,222.5 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 | 40,264,445 | |
| -1 | -40,264,445 |
Now, we try dividing 40,264,445 by 3:
40,264,445 ÷ 3 = 13,421,481.6667
If the quotient is a whole number, then 3 and 13,421,481.6667 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 | 40,264,445 | |
| -1 | -40,264,445 |
Let's try dividing by 4:
40,264,445 ÷ 4 = 10,066,111.25
If the quotient is a whole number, then 4 and 10,066,111.25 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 | 40,264,445 | |
| -1 | 40,264,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 509 | 1,217 | 2,545 | 6,085 | 6,617 | 15,821 | 33,085 | 79,105 | 619,453 | 3,097,265 | 8,052,889 | 40,264,445 |
| -1 | -5 | -13 | -65 | -509 | -1,217 | -2,545 | -6,085 | -6,617 | -15,821 | -33,085 | -79,105 | -619,453 | -3,097,265 | -8,052,889 | -40,264,445 |
Here are some more numbers to try:
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