A:
Positive:
1 x 1331302077 x 1901860119 x 700685349 x 2716943133 x 1000979151 x 881657931 x 142997947 x 1405811057 x 1259512869 x 464036629 x 200837399 x 17993
Negative:
-1 x -133130207-7 x -19018601-19 x -7006853-49 x -2716943-133 x -1000979-151 x -881657-931 x -142997-947 x -140581-1057 x -125951-2869 x -46403-6629 x -20083-7399 x -17993
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 133,130,207, 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 | 133,130,207 | |
| -1 | -133,130,207 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,130,207.
Example:
1 x 133,130,207 = 133,130,207
and
-1 x -133,130,207 = 133,130,207
Notice both answers equal 133,130,207
With that explanation out of the way, let's continue. Next, we take the number 133,130,207 and divide it by 2:
133,130,207 ÷ 2 = 66,565,103.5
If the quotient is a whole number, then 2 and 66,565,103.5 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 | 133,130,207 | |
| -1 | -133,130,207 |
Now, we try dividing 133,130,207 by 3:
133,130,207 ÷ 3 = 44,376,735.6667
If the quotient is a whole number, then 3 and 44,376,735.6667 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 | 133,130,207 | |
| -1 | -133,130,207 |
Let's try dividing by 4:
133,130,207 ÷ 4 = 33,282,551.75
If the quotient is a whole number, then 4 and 33,282,551.75 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 | 133,130,207 | |
| -1 | 133,130,207 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 49 | 133 | 151 | 931 | 947 | 1,057 | 2,869 | 6,629 | 7,399 | 17,993 | 20,083 | 46,403 | 125,951 | 140,581 | 142,997 | 881,657 | 1,000,979 | 2,716,943 | 7,006,853 | 19,018,601 | 133,130,207 |
| -1 | -7 | -19 | -49 | -133 | -151 | -931 | -947 | -1,057 | -2,869 | -6,629 | -7,399 | -17,993 | -20,083 | -46,403 | -125,951 | -140,581 | -142,997 | -881,657 | -1,000,979 | -2,716,943 | -7,006,853 | -19,018,601 | -133,130,207 |
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