A:
Positive:
1 x 150436455 x 300872937 x 406585185 x 81317233 x 64565349 x 431051165 x 129131745 x 8621
Negative:
-1 x -15043645-5 x -3008729-37 x -406585-185 x -81317-233 x -64565-349 x -43105-1165 x -12913-1745 x -8621
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 15,043,645, 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 | 15,043,645 | |
| -1 | -15,043,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,043,645.
Example:
1 x 15,043,645 = 15,043,645
and
-1 x -15,043,645 = 15,043,645
Notice both answers equal 15,043,645
With that explanation out of the way, let's continue. Next, we take the number 15,043,645 and divide it by 2:
15,043,645 ÷ 2 = 7,521,822.5
If the quotient is a whole number, then 2 and 7,521,822.5 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 | 15,043,645 | |
| -1 | -15,043,645 |
Now, we try dividing 15,043,645 by 3:
15,043,645 ÷ 3 = 5,014,548.3333
If the quotient is a whole number, then 3 and 5,014,548.3333 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 | 15,043,645 | |
| -1 | -15,043,645 |
Let's try dividing by 4:
15,043,645 ÷ 4 = 3,760,911.25
If the quotient is a whole number, then 4 and 3,760,911.25 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 | 15,043,645 | |
| -1 | 15,043,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 233 | 349 | 1,165 | 1,745 | 8,621 | 12,913 | 43,105 | 64,565 | 81,317 | 406,585 | 3,008,729 | 15,043,645 |
| -1 | -5 | -37 | -185 | -233 | -349 | -1,165 | -1,745 | -8,621 | -12,913 | -43,105 | -64,565 | -81,317 | -406,585 | -3,008,729 | -15,043,645 |
Here are some more numbers to try:
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