A:
Positive:
1 x 6502702155 x 1300540437 x 9289574535 x 185791493329 x 1953355581 x 11651516645 x 3906723303 x 27905
Negative:
-1 x -650270215-5 x -130054043-7 x -92895745-35 x -18579149-3329 x -195335-5581 x -116515-16645 x -39067-23303 x -27905
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 650,270,215, 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 | 650,270,215 | |
| -1 | -650,270,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 650,270,215.
Example:
1 x 650,270,215 = 650,270,215
and
-1 x -650,270,215 = 650,270,215
Notice both answers equal 650,270,215
With that explanation out of the way, let's continue. Next, we take the number 650,270,215 and divide it by 2:
650,270,215 ÷ 2 = 325,135,107.5
If the quotient is a whole number, then 2 and 325,135,107.5 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 | 650,270,215 | |
| -1 | -650,270,215 |
Now, we try dividing 650,270,215 by 3:
650,270,215 ÷ 3 = 216,756,738.3333
If the quotient is a whole number, then 3 and 216,756,738.3333 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 | 650,270,215 | |
| -1 | -650,270,215 |
Let's try dividing by 4:
650,270,215 ÷ 4 = 162,567,553.75
If the quotient is a whole number, then 4 and 162,567,553.75 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 | 650,270,215 | |
| -1 | 650,270,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 3,329 | 5,581 | 16,645 | 23,303 | 27,905 | 39,067 | 116,515 | 195,335 | 18,579,149 | 92,895,745 | 130,054,043 | 650,270,215 |
| -1 | -5 | -7 | -35 | -3,329 | -5,581 | -16,645 | -23,303 | -27,905 | -39,067 | -116,515 | -195,335 | -18,579,149 | -92,895,745 | -130,054,043 | -650,270,215 |
Here are some more numbers to try:
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