A:
Positive:
1 x 20305115323 x 882831137 x 5487869269 x 754837851 x 238603887 x 2289196187 x 328199953 x 20401
Negative:
-1 x -203051153-23 x -8828311-37 x -5487869-269 x -754837-851 x -238603-887 x -228919-6187 x -32819-9953 x -20401
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 203,051,153, 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 | 203,051,153 | |
| -1 | -203,051,153 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 203,051,153.
Example:
1 x 203,051,153 = 203,051,153
and
-1 x -203,051,153 = 203,051,153
Notice both answers equal 203,051,153
With that explanation out of the way, let's continue. Next, we take the number 203,051,153 and divide it by 2:
203,051,153 ÷ 2 = 101,525,576.5
If the quotient is a whole number, then 2 and 101,525,576.5 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 | 203,051,153 | |
| -1 | -203,051,153 |
Now, we try dividing 203,051,153 by 3:
203,051,153 ÷ 3 = 67,683,717.6667
If the quotient is a whole number, then 3 and 67,683,717.6667 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 | 203,051,153 | |
| -1 | -203,051,153 |
Let's try dividing by 4:
203,051,153 ÷ 4 = 50,762,788.25
If the quotient is a whole number, then 4 and 50,762,788.25 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 | 203,051,153 | |
| -1 | 203,051,153 |
If you did it right, you will end up with this table:
| 1 | 23 | 37 | 269 | 851 | 887 | 6,187 | 9,953 | 20,401 | 32,819 | 228,919 | 238,603 | 754,837 | 5,487,869 | 8,828,311 | 203,051,153 |
| -1 | -23 | -37 | -269 | -851 | -887 | -6,187 | -9,953 | -20,401 | -32,819 | -228,919 | -238,603 | -754,837 | -5,487,869 | -8,828,311 | -203,051,153 |
Here are some more numbers to try:
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