A:
Positive:
1 x 2061675555 x 4123351111 x 1874250555 x 3748501229 x 9002951145 x 1800592519 x 8184512595 x 16369
Negative:
-1 x -206167555-5 x -41233511-11 x -18742505-55 x -3748501-229 x -900295-1145 x -180059-2519 x -81845-12595 x -16369
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 206,167,555, 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 | 206,167,555 | |
| -1 | -206,167,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 206,167,555.
Example:
1 x 206,167,555 = 206,167,555
and
-1 x -206,167,555 = 206,167,555
Notice both answers equal 206,167,555
With that explanation out of the way, let's continue. Next, we take the number 206,167,555 and divide it by 2:
206,167,555 ÷ 2 = 103,083,777.5
If the quotient is a whole number, then 2 and 103,083,777.5 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 | 206,167,555 | |
| -1 | -206,167,555 |
Now, we try dividing 206,167,555 by 3:
206,167,555 ÷ 3 = 68,722,518.3333
If the quotient is a whole number, then 3 and 68,722,518.3333 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 | 206,167,555 | |
| -1 | -206,167,555 |
Let's try dividing by 4:
206,167,555 ÷ 4 = 51,541,888.75
If the quotient is a whole number, then 4 and 51,541,888.75 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 | 206,167,555 | |
| -1 | 206,167,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 229 | 1,145 | 2,519 | 12,595 | 16,369 | 81,845 | 180,059 | 900,295 | 3,748,501 | 18,742,505 | 41,233,511 | 206,167,555 |
| -1 | -5 | -11 | -55 | -229 | -1,145 | -2,519 | -12,595 | -16,369 | -81,845 | -180,059 | -900,295 | -3,748,501 | -18,742,505 | -41,233,511 | -206,167,555 |
Here are some more numbers to try:
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