A:
Positive:
1 x 3665306455 x 7330612913 x 2819466523 x 1593611565 x 5638933115 x 3187223299 x 12258551495 x 245171
Negative:
-1 x -366530645-5 x -73306129-13 x -28194665-23 x -15936115-65 x -5638933-115 x -3187223-299 x -1225855-1495 x -245171
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 366,530,645, 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 | 366,530,645 | |
| -1 | -366,530,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 366,530,645.
Example:
1 x 366,530,645 = 366,530,645
and
-1 x -366,530,645 = 366,530,645
Notice both answers equal 366,530,645
With that explanation out of the way, let's continue. Next, we take the number 366,530,645 and divide it by 2:
366,530,645 ÷ 2 = 183,265,322.5
If the quotient is a whole number, then 2 and 183,265,322.5 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 | 366,530,645 | |
| -1 | -366,530,645 |
Now, we try dividing 366,530,645 by 3:
366,530,645 ÷ 3 = 122,176,881.6667
If the quotient is a whole number, then 3 and 122,176,881.6667 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 | 366,530,645 | |
| -1 | -366,530,645 |
Let's try dividing by 4:
366,530,645 ÷ 4 = 91,632,661.25
If the quotient is a whole number, then 4 and 91,632,661.25 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 | 366,530,645 | |
| -1 | 366,530,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 299 | 1,495 | 245,171 | 1,225,855 | 3,187,223 | 5,638,933 | 15,936,115 | 28,194,665 | 73,306,129 | 366,530,645 |
| -1 | -5 | -13 | -23 | -65 | -115 | -299 | -1,495 | -245,171 | -1,225,855 | -3,187,223 | -5,638,933 | -15,936,115 | -28,194,665 | -73,306,129 | -366,530,645 |
Here are some more numbers to try:
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