A:
Positive:
1 x 187032655 x 37406537 x 267189535 x 534379251 x 745151255 x 149031757 x 106452129 x 8785
Negative:
-1 x -18703265-5 x -3740653-7 x -2671895-35 x -534379-251 x -74515-1255 x -14903-1757 x -10645-2129 x -8785
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 18,703,265, 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 | 18,703,265 | |
| -1 | -18,703,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,703,265.
Example:
1 x 18,703,265 = 18,703,265
and
-1 x -18,703,265 = 18,703,265
Notice both answers equal 18,703,265
With that explanation out of the way, let's continue. Next, we take the number 18,703,265 and divide it by 2:
18,703,265 ÷ 2 = 9,351,632.5
If the quotient is a whole number, then 2 and 9,351,632.5 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 | 18,703,265 | |
| -1 | -18,703,265 |
Now, we try dividing 18,703,265 by 3:
18,703,265 ÷ 3 = 6,234,421.6667
If the quotient is a whole number, then 3 and 6,234,421.6667 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 | 18,703,265 | |
| -1 | -18,703,265 |
Let's try dividing by 4:
18,703,265 ÷ 4 = 4,675,816.25
If the quotient is a whole number, then 4 and 4,675,816.25 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 | 18,703,265 | |
| -1 | 18,703,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 251 | 1,255 | 1,757 | 2,129 | 8,785 | 10,645 | 14,903 | 74,515 | 534,379 | 2,671,895 | 3,740,653 | 18,703,265 |
| -1 | -5 | -7 | -35 | -251 | -1,255 | -1,757 | -2,129 | -8,785 | -10,645 | -14,903 | -74,515 | -534,379 | -2,671,895 | -3,740,653 | -18,703,265 |
Here are some more numbers to try:
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