A:
Positive:
1 x 20543710119 x 1081247941 x 501066143 x 4777607779 x 263719817 x 2514531763 x 1165276133 x 33497
Negative:
-1 x -205437101-19 x -10812479-41 x -5010661-43 x -4777607-779 x -263719-817 x -251453-1763 x -116527-6133 x -33497
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 205,437,101, 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 | 205,437,101 | |
| -1 | -205,437,101 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 205,437,101.
Example:
1 x 205,437,101 = 205,437,101
and
-1 x -205,437,101 = 205,437,101
Notice both answers equal 205,437,101
With that explanation out of the way, let's continue. Next, we take the number 205,437,101 and divide it by 2:
205,437,101 ÷ 2 = 102,718,550.5
If the quotient is a whole number, then 2 and 102,718,550.5 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 | 205,437,101 | |
| -1 | -205,437,101 |
Now, we try dividing 205,437,101 by 3:
205,437,101 ÷ 3 = 68,479,033.6667
If the quotient is a whole number, then 3 and 68,479,033.6667 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 | 205,437,101 | |
| -1 | -205,437,101 |
Let's try dividing by 4:
205,437,101 ÷ 4 = 51,359,275.25
If the quotient is a whole number, then 4 and 51,359,275.25 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 | 205,437,101 | |
| -1 | 205,437,101 |
If you did it right, you will end up with this table:
| 1 | 19 | 41 | 43 | 779 | 817 | 1,763 | 6,133 | 33,497 | 116,527 | 251,453 | 263,719 | 4,777,607 | 5,010,661 | 10,812,479 | 205,437,101 |
| -1 | -19 | -41 | -43 | -779 | -817 | -1,763 | -6,133 | -33,497 | -116,527 | -251,453 | -263,719 | -4,777,607 | -5,010,661 | -10,812,479 | -205,437,101 |
Here are some more numbers to try:
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