A:
Positive:
1 x 1330334397 x 1900477711 x 1209394977 x 1727707137 x 971047959 x 1387211507 x 8827710549 x 12611
Negative:
-1 x -133033439-7 x -19004777-11 x -12093949-77 x -1727707-137 x -971047-959 x -138721-1507 x -88277-10549 x -12611
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 133,033,439, 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 | 133,033,439 | |
| -1 | -133,033,439 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,033,439.
Example:
1 x 133,033,439 = 133,033,439
and
-1 x -133,033,439 = 133,033,439
Notice both answers equal 133,033,439
With that explanation out of the way, let's continue. Next, we take the number 133,033,439 and divide it by 2:
133,033,439 ÷ 2 = 66,516,719.5
If the quotient is a whole number, then 2 and 66,516,719.5 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 | 133,033,439 | |
| -1 | -133,033,439 |
Now, we try dividing 133,033,439 by 3:
133,033,439 ÷ 3 = 44,344,479.6667
If the quotient is a whole number, then 3 and 44,344,479.6667 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 | 133,033,439 | |
| -1 | -133,033,439 |
Let's try dividing by 4:
133,033,439 ÷ 4 = 33,258,359.75
If the quotient is a whole number, then 4 and 33,258,359.75 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 | 133,033,439 | |
| -1 | 133,033,439 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 137 | 959 | 1,507 | 10,549 | 12,611 | 88,277 | 138,721 | 971,047 | 1,727,707 | 12,093,949 | 19,004,777 | 133,033,439 |
| -1 | -7 | -11 | -77 | -137 | -959 | -1,507 | -10,549 | -12,611 | -88,277 | -138,721 | -971,047 | -1,727,707 | -12,093,949 | -19,004,777 | -133,033,439 |
Here are some more numbers to try:
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