A:
Positive:
1 x 1331534055 x 266306817 x 1902191511 x 1210485535 x 380438355 x 242097177 x 1729265385 x 345853
Negative:
-1 x -133153405-5 x -26630681-7 x -19021915-11 x -12104855-35 x -3804383-55 x -2420971-77 x -1729265-385 x -345853
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 133,153,405, 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 | 133,153,405 | |
| -1 | -133,153,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,153,405.
Example:
1 x 133,153,405 = 133,153,405
and
-1 x -133,153,405 = 133,153,405
Notice both answers equal 133,153,405
With that explanation out of the way, let's continue. Next, we take the number 133,153,405 and divide it by 2:
133,153,405 ÷ 2 = 66,576,702.5
If the quotient is a whole number, then 2 and 66,576,702.5 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 | 133,153,405 | |
| -1 | -133,153,405 |
Now, we try dividing 133,153,405 by 3:
133,153,405 ÷ 3 = 44,384,468.3333
If the quotient is a whole number, then 3 and 44,384,468.3333 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 | 133,153,405 | |
| -1 | -133,153,405 |
Let's try dividing by 4:
133,153,405 ÷ 4 = 33,288,351.25
If the quotient is a whole number, then 4 and 33,288,351.25 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 | 133,153,405 | |
| -1 | 133,153,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 345,853 | 1,729,265 | 2,420,971 | 3,804,383 | 12,104,855 | 19,021,915 | 26,630,681 | 133,153,405 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -345,853 | -1,729,265 | -2,420,971 | -3,804,383 | -12,104,855 | -19,021,915 | -26,630,681 | -133,153,405 |
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