A:
Positive:
1 x 1156216677 x 1651738123 x 5027029161 x 718147337 x 3430912131 x 542572359 x 490137751 x 14917
Negative:
-1 x -115621667-7 x -16517381-23 x -5027029-161 x -718147-337 x -343091-2131 x -54257-2359 x -49013-7751 x -14917
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 115,621,667, 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 | 115,621,667 | |
| -1 | -115,621,667 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,621,667.
Example:
1 x 115,621,667 = 115,621,667
and
-1 x -115,621,667 = 115,621,667
Notice both answers equal 115,621,667
With that explanation out of the way, let's continue. Next, we take the number 115,621,667 and divide it by 2:
115,621,667 ÷ 2 = 57,810,833.5
If the quotient is a whole number, then 2 and 57,810,833.5 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 | 115,621,667 | |
| -1 | -115,621,667 |
Now, we try dividing 115,621,667 by 3:
115,621,667 ÷ 3 = 38,540,555.6667
If the quotient is a whole number, then 3 and 38,540,555.6667 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 | 115,621,667 | |
| -1 | -115,621,667 |
Let's try dividing by 4:
115,621,667 ÷ 4 = 28,905,416.75
If the quotient is a whole number, then 4 and 28,905,416.75 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 | 115,621,667 | |
| -1 | 115,621,667 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 161 | 337 | 2,131 | 2,359 | 7,751 | 14,917 | 49,013 | 54,257 | 343,091 | 718,147 | 5,027,029 | 16,517,381 | 115,621,667 |
| -1 | -7 | -23 | -161 | -337 | -2,131 | -2,359 | -7,751 | -14,917 | -49,013 | -54,257 | -343,091 | -718,147 | -5,027,029 | -16,517,381 | -115,621,667 |
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