A:
Positive:
1 x 20726305343 x 4820071137 x 1512869151 x 1372603233 x 8895415891 x 351836493 x 3192110019 x 20687
Negative:
-1 x -207263053-43 x -4820071-137 x -1512869-151 x -1372603-233 x -889541-5891 x -35183-6493 x -31921-10019 x -20687
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 207,263,053, 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 | 207,263,053 | |
| -1 | -207,263,053 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 207,263,053.
Example:
1 x 207,263,053 = 207,263,053
and
-1 x -207,263,053 = 207,263,053
Notice both answers equal 207,263,053
With that explanation out of the way, let's continue. Next, we take the number 207,263,053 and divide it by 2:
207,263,053 ÷ 2 = 103,631,526.5
If the quotient is a whole number, then 2 and 103,631,526.5 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 | 207,263,053 | |
| -1 | -207,263,053 |
Now, we try dividing 207,263,053 by 3:
207,263,053 ÷ 3 = 69,087,684.3333
If the quotient is a whole number, then 3 and 69,087,684.3333 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 | 207,263,053 | |
| -1 | -207,263,053 |
Let's try dividing by 4:
207,263,053 ÷ 4 = 51,815,763.25
If the quotient is a whole number, then 4 and 51,815,763.25 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 | 207,263,053 | |
| -1 | 207,263,053 |
If you did it right, you will end up with this table:
| 1 | 43 | 137 | 151 | 233 | 5,891 | 6,493 | 10,019 | 20,687 | 31,921 | 35,183 | 889,541 | 1,372,603 | 1,512,869 | 4,820,071 | 207,263,053 |
| -1 | -43 | -137 | -151 | -233 | -5,891 | -6,493 | -10,019 | -20,687 | -31,921 | -35,183 | -889,541 | -1,372,603 | -1,512,869 | -4,820,071 | -207,263,053 |
Here are some more numbers to try:
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