A:
Positive:
1 x 2100520737 x 3000743911 x 1909564349 x 428677777 x 272794979 x 2658887539 x 389707553 x 379841869 x 2417173871 x 542634933 x 425816083 x 34531
Negative:
-1 x -210052073-7 x -30007439-11 x -19095643-49 x -4286777-77 x -2727949-79 x -2658887-539 x -389707-553 x -379841-869 x -241717-3871 x -54263-4933 x -42581-6083 x -34531
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 210,052,073, 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 | 210,052,073 | |
| -1 | -210,052,073 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 210,052,073.
Example:
1 x 210,052,073 = 210,052,073
and
-1 x -210,052,073 = 210,052,073
Notice both answers equal 210,052,073
With that explanation out of the way, let's continue. Next, we take the number 210,052,073 and divide it by 2:
210,052,073 ÷ 2 = 105,026,036.5
If the quotient is a whole number, then 2 and 105,026,036.5 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 | 210,052,073 | |
| -1 | -210,052,073 |
Now, we try dividing 210,052,073 by 3:
210,052,073 ÷ 3 = 70,017,357.6667
If the quotient is a whole number, then 3 and 70,017,357.6667 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 | 210,052,073 | |
| -1 | -210,052,073 |
Let's try dividing by 4:
210,052,073 ÷ 4 = 52,513,018.25
If the quotient is a whole number, then 4 and 52,513,018.25 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 | 210,052,073 | |
| -1 | 210,052,073 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 49 | 77 | 79 | 539 | 553 | 869 | 3,871 | 4,933 | 6,083 | 34,531 | 42,581 | 54,263 | 241,717 | 379,841 | 389,707 | 2,658,887 | 2,727,949 | 4,286,777 | 19,095,643 | 30,007,439 | 210,052,073 |
| -1 | -7 | -11 | -49 | -77 | -79 | -539 | -553 | -869 | -3,871 | -4,933 | -6,083 | -34,531 | -42,581 | -54,263 | -241,717 | -379,841 | -389,707 | -2,658,887 | -2,727,949 | -4,286,777 | -19,095,643 | -30,007,439 | -210,052,073 |
Here are some more numbers to try:
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