A:
Positive:
1 x 1331600655 x 2663201317 x 783294585 x 1566589229 x 5814851145 x 1162973893 x 342056841 x 19465
Negative:
-1 x -133160065-5 x -26632013-17 x -7832945-85 x -1566589-229 x -581485-1145 x -116297-3893 x -34205-6841 x -19465
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 133,160,065, 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 | 133,160,065 | |
| -1 | -133,160,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,160,065.
Example:
1 x 133,160,065 = 133,160,065
and
-1 x -133,160,065 = 133,160,065
Notice both answers equal 133,160,065
With that explanation out of the way, let's continue. Next, we take the number 133,160,065 and divide it by 2:
133,160,065 ÷ 2 = 66,580,032.5
If the quotient is a whole number, then 2 and 66,580,032.5 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 | 133,160,065 | |
| -1 | -133,160,065 |
Now, we try dividing 133,160,065 by 3:
133,160,065 ÷ 3 = 44,386,688.3333
If the quotient is a whole number, then 3 and 44,386,688.3333 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 | 133,160,065 | |
| -1 | -133,160,065 |
Let's try dividing by 4:
133,160,065 ÷ 4 = 33,290,016.25
If the quotient is a whole number, then 4 and 33,290,016.25 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 | 133,160,065 | |
| -1 | 133,160,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 229 | 1,145 | 3,893 | 6,841 | 19,465 | 34,205 | 116,297 | 581,485 | 1,566,589 | 7,832,945 | 26,632,013 | 133,160,065 |
| -1 | -5 | -17 | -85 | -229 | -1,145 | -3,893 | -6,841 | -19,465 | -34,205 | -116,297 | -581,485 | -1,566,589 | -7,832,945 | -26,632,013 | -133,160,065 |
Here are some more numbers to try:
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