A:
Positive:
1 x 2033511555 x 406702317 x 2905016535 x 5810033137 x 1484315685 x 296863959 x 2120454795 x 42409
Negative:
-1 x -203351155-5 x -40670231-7 x -29050165-35 x -5810033-137 x -1484315-685 x -296863-959 x -212045-4795 x -42409
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 203,351,155, 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 | 203,351,155 | |
| -1 | -203,351,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 203,351,155.
Example:
1 x 203,351,155 = 203,351,155
and
-1 x -203,351,155 = 203,351,155
Notice both answers equal 203,351,155
With that explanation out of the way, let's continue. Next, we take the number 203,351,155 and divide it by 2:
203,351,155 ÷ 2 = 101,675,577.5
If the quotient is a whole number, then 2 and 101,675,577.5 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 | 203,351,155 | |
| -1 | -203,351,155 |
Now, we try dividing 203,351,155 by 3:
203,351,155 ÷ 3 = 67,783,718.3333
If the quotient is a whole number, then 3 and 67,783,718.3333 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 | 203,351,155 | |
| -1 | -203,351,155 |
Let's try dividing by 4:
203,351,155 ÷ 4 = 50,837,788.75
If the quotient is a whole number, then 4 and 50,837,788.75 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 | 203,351,155 | |
| -1 | 203,351,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 137 | 685 | 959 | 4,795 | 42,409 | 212,045 | 296,863 | 1,484,315 | 5,810,033 | 29,050,165 | 40,670,231 | 203,351,155 |
| -1 | -5 | -7 | -35 | -137 | -685 | -959 | -4,795 | -42,409 | -212,045 | -296,863 | -1,484,315 | -5,810,033 | -29,050,165 | -40,670,231 | -203,351,155 |
Here are some more numbers to try:
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