A:
Positive:
1 x 20320324713 x 1563101979 x 2572193241 x 843167821 x 2475071027 x 1978613133 x 6485910673 x 19039
Negative:
-1 x -203203247-13 x -15631019-79 x -2572193-241 x -843167-821 x -247507-1027 x -197861-3133 x -64859-10673 x -19039
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 203,203,247, 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 | 203,203,247 | |
| -1 | -203,203,247 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 203,203,247.
Example:
1 x 203,203,247 = 203,203,247
and
-1 x -203,203,247 = 203,203,247
Notice both answers equal 203,203,247
With that explanation out of the way, let's continue. Next, we take the number 203,203,247 and divide it by 2:
203,203,247 ÷ 2 = 101,601,623.5
If the quotient is a whole number, then 2 and 101,601,623.5 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 | 203,203,247 | |
| -1 | -203,203,247 |
Now, we try dividing 203,203,247 by 3:
203,203,247 ÷ 3 = 67,734,415.6667
If the quotient is a whole number, then 3 and 67,734,415.6667 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 | 203,203,247 | |
| -1 | -203,203,247 |
Let's try dividing by 4:
203,203,247 ÷ 4 = 50,800,811.75
If the quotient is a whole number, then 4 and 50,800,811.75 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 | 203,203,247 | |
| -1 | 203,203,247 |
If you did it right, you will end up with this table:
| 1 | 13 | 79 | 241 | 821 | 1,027 | 3,133 | 10,673 | 19,039 | 64,859 | 197,861 | 247,507 | 843,167 | 2,572,193 | 15,631,019 | 203,203,247 |
| -1 | -13 | -79 | -241 | -821 | -1,027 | -3,133 | -10,673 | -19,039 | -64,859 | -197,861 | -247,507 | -843,167 | -2,572,193 | -15,631,019 | -203,203,247 |
Here are some more numbers to try:
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