A:
Positive:
1 x 2105323555 x 4210647111 x 1913930555 x 382786159 x 3568345295 x 713669649 x 3243953245 x 64879
Negative:
-1 x -210532355-5 x -42106471-11 x -19139305-55 x -3827861-59 x -3568345-295 x -713669-649 x -324395-3245 x -64879
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 210,532,355, 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 | 210,532,355 | |
| -1 | -210,532,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 210,532,355.
Example:
1 x 210,532,355 = 210,532,355
and
-1 x -210,532,355 = 210,532,355
Notice both answers equal 210,532,355
With that explanation out of the way, let's continue. Next, we take the number 210,532,355 and divide it by 2:
210,532,355 ÷ 2 = 105,266,177.5
If the quotient is a whole number, then 2 and 105,266,177.5 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 | 210,532,355 | |
| -1 | -210,532,355 |
Now, we try dividing 210,532,355 by 3:
210,532,355 ÷ 3 = 70,177,451.6667
If the quotient is a whole number, then 3 and 70,177,451.6667 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 | 210,532,355 | |
| -1 | -210,532,355 |
Let's try dividing by 4:
210,532,355 ÷ 4 = 52,633,088.75
If the quotient is a whole number, then 4 and 52,633,088.75 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 | 210,532,355 | |
| -1 | 210,532,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 59 | 295 | 649 | 3,245 | 64,879 | 324,395 | 713,669 | 3,568,345 | 3,827,861 | 19,139,305 | 42,106,471 | 210,532,355 |
| -1 | -5 | -11 | -55 | -59 | -295 | -649 | -3,245 | -64,879 | -324,395 | -713,669 | -3,568,345 | -3,827,861 | -19,139,305 | -42,106,471 | -210,532,355 |
Here are some more numbers to try:
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