A:
Positive:
1 x 1557713311 x 141610313 x 119824197 x 160589143 x 1089311067 x 145991123 x 138711261 x 12353
Negative:
-1 x -15577133-11 x -1416103-13 x -1198241-97 x -160589-143 x -108931-1067 x -14599-1123 x -13871-1261 x -12353
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 15,577,133, 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 | 15,577,133 | |
| -1 | -15,577,133 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,577,133.
Example:
1 x 15,577,133 = 15,577,133
and
-1 x -15,577,133 = 15,577,133
Notice both answers equal 15,577,133
With that explanation out of the way, let's continue. Next, we take the number 15,577,133 and divide it by 2:
15,577,133 ÷ 2 = 7,788,566.5
If the quotient is a whole number, then 2 and 7,788,566.5 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 | 15,577,133 | |
| -1 | -15,577,133 |
Now, we try dividing 15,577,133 by 3:
15,577,133 ÷ 3 = 5,192,377.6667
If the quotient is a whole number, then 3 and 5,192,377.6667 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 | 15,577,133 | |
| -1 | -15,577,133 |
Let's try dividing by 4:
15,577,133 ÷ 4 = 3,894,283.25
If the quotient is a whole number, then 4 and 3,894,283.25 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 | 15,577,133 | |
| -1 | 15,577,133 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 97 | 143 | 1,067 | 1,123 | 1,261 | 12,353 | 13,871 | 14,599 | 108,931 | 160,589 | 1,198,241 | 1,416,103 | 15,577,133 |
| -1 | -11 | -13 | -97 | -143 | -1,067 | -1,123 | -1,261 | -12,353 | -13,871 | -14,599 | -108,931 | -160,589 | -1,198,241 | -1,416,103 | -15,577,133 |
Here are some more numbers to try:
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