A:
Positive:
1 x 3076600155 x 6153200313 x 2366615565 x 4733231113 x 2722655565 x 5445311469 x 2094357345 x 41887
Negative:
-1 x -307660015-5 x -61532003-13 x -23666155-65 x -4733231-113 x -2722655-565 x -544531-1469 x -209435-7345 x -41887
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 307,660,015, 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 | 307,660,015 | |
| -1 | -307,660,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 307,660,015.
Example:
1 x 307,660,015 = 307,660,015
and
-1 x -307,660,015 = 307,660,015
Notice both answers equal 307,660,015
With that explanation out of the way, let's continue. Next, we take the number 307,660,015 and divide it by 2:
307,660,015 ÷ 2 = 153,830,007.5
If the quotient is a whole number, then 2 and 153,830,007.5 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 | 307,660,015 | |
| -1 | -307,660,015 |
Now, we try dividing 307,660,015 by 3:
307,660,015 ÷ 3 = 102,553,338.3333
If the quotient is a whole number, then 3 and 102,553,338.3333 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 | 307,660,015 | |
| -1 | -307,660,015 |
Let's try dividing by 4:
307,660,015 ÷ 4 = 76,915,003.75
If the quotient is a whole number, then 4 and 76,915,003.75 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 | 307,660,015 | |
| -1 | 307,660,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 113 | 565 | 1,469 | 7,345 | 41,887 | 209,435 | 544,531 | 2,722,655 | 4,733,231 | 23,666,155 | 61,532,003 | 307,660,015 |
| -1 | -5 | -13 | -65 | -113 | -565 | -1,469 | -7,345 | -41,887 | -209,435 | -544,531 | -2,722,655 | -4,733,231 | -23,666,155 | -61,532,003 | -307,660,015 |
Here are some more numbers to try:
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