A:
Positive:
1 x 20340121113 x 1564624783 x 2450617131 x 15526811079 x 1885091439 x 1413491703 x 11943710873 x 18707
Negative:
-1 x -203401211-13 x -15646247-83 x -2450617-131 x -1552681-1079 x -188509-1439 x -141349-1703 x -119437-10873 x -18707
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 203,401,211, 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 | 203,401,211 | |
| -1 | -203,401,211 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 203,401,211.
Example:
1 x 203,401,211 = 203,401,211
and
-1 x -203,401,211 = 203,401,211
Notice both answers equal 203,401,211
With that explanation out of the way, let's continue. Next, we take the number 203,401,211 and divide it by 2:
203,401,211 ÷ 2 = 101,700,605.5
If the quotient is a whole number, then 2 and 101,700,605.5 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 | 203,401,211 | |
| -1 | -203,401,211 |
Now, we try dividing 203,401,211 by 3:
203,401,211 ÷ 3 = 67,800,403.6667
If the quotient is a whole number, then 3 and 67,800,403.6667 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 | 203,401,211 | |
| -1 | -203,401,211 |
Let's try dividing by 4:
203,401,211 ÷ 4 = 50,850,302.75
If the quotient is a whole number, then 4 and 50,850,302.75 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 | 203,401,211 | |
| -1 | 203,401,211 |
If you did it right, you will end up with this table:
| 1 | 13 | 83 | 131 | 1,079 | 1,439 | 1,703 | 10,873 | 18,707 | 119,437 | 141,349 | 188,509 | 1,552,681 | 2,450,617 | 15,646,247 | 203,401,211 |
| -1 | -13 | -83 | -131 | -1,079 | -1,439 | -1,703 | -10,873 | -18,707 | -119,437 | -141,349 | -188,509 | -1,552,681 | -2,450,617 | -15,646,247 | -203,401,211 |
Here are some more numbers to try:
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