A:
Positive:
1 x 21020044111 x 1910913137 x 5681093241 x 872201407 x 5164632143 x 980872651 x 792918917 x 23573
Negative:
-1 x -210200441-11 x -19109131-37 x -5681093-241 x -872201-407 x -516463-2143 x -98087-2651 x -79291-8917 x -23573
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 210,200,441, 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 | 210,200,441 | |
| -1 | -210,200,441 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 210,200,441.
Example:
1 x 210,200,441 = 210,200,441
and
-1 x -210,200,441 = 210,200,441
Notice both answers equal 210,200,441
With that explanation out of the way, let's continue. Next, we take the number 210,200,441 and divide it by 2:
210,200,441 ÷ 2 = 105,100,220.5
If the quotient is a whole number, then 2 and 105,100,220.5 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 | 210,200,441 | |
| -1 | -210,200,441 |
Now, we try dividing 210,200,441 by 3:
210,200,441 ÷ 3 = 70,066,813.6667
If the quotient is a whole number, then 3 and 70,066,813.6667 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 | 210,200,441 | |
| -1 | -210,200,441 |
Let's try dividing by 4:
210,200,441 ÷ 4 = 52,550,110.25
If the quotient is a whole number, then 4 and 52,550,110.25 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 | 210,200,441 | |
| -1 | 210,200,441 |
If you did it right, you will end up with this table:
| 1 | 11 | 37 | 241 | 407 | 2,143 | 2,651 | 8,917 | 23,573 | 79,291 | 98,087 | 516,463 | 872,201 | 5,681,093 | 19,109,131 | 210,200,441 |
| -1 | -11 | -37 | -241 | -407 | -2,143 | -2,651 | -8,917 | -23,573 | -79,291 | -98,087 | -516,463 | -872,201 | -5,681,093 | -19,109,131 | -210,200,441 |
Here are some more numbers to try:
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