A:
Positive:
1 x 16313014717 x 959589189 x 1832923137 x 1190731787 x 2072811513 x 1078192329 x 7004312193 x 13379
Negative:
-1 x -163130147-17 x -9595891-89 x -1832923-137 x -1190731-787 x -207281-1513 x -107819-2329 x -70043-12193 x -13379
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 163,130,147, 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 | 163,130,147 | |
| -1 | -163,130,147 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,130,147.
Example:
1 x 163,130,147 = 163,130,147
and
-1 x -163,130,147 = 163,130,147
Notice both answers equal 163,130,147
With that explanation out of the way, let's continue. Next, we take the number 163,130,147 and divide it by 2:
163,130,147 ÷ 2 = 81,565,073.5
If the quotient is a whole number, then 2 and 81,565,073.5 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 | 163,130,147 | |
| -1 | -163,130,147 |
Now, we try dividing 163,130,147 by 3:
163,130,147 ÷ 3 = 54,376,715.6667
If the quotient is a whole number, then 3 and 54,376,715.6667 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 | 163,130,147 | |
| -1 | -163,130,147 |
Let's try dividing by 4:
163,130,147 ÷ 4 = 40,782,536.75
If the quotient is a whole number, then 4 and 40,782,536.75 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 | 163,130,147 | |
| -1 | 163,130,147 |
If you did it right, you will end up with this table:
| 1 | 17 | 89 | 137 | 787 | 1,513 | 2,329 | 12,193 | 13,379 | 70,043 | 107,819 | 207,281 | 1,190,731 | 1,832,923 | 9,595,891 | 163,130,147 |
| -1 | -17 | -89 | -137 | -787 | -1,513 | -2,329 | -12,193 | -13,379 | -70,043 | -107,819 | -207,281 | -1,190,731 | -1,832,923 | -9,595,891 | -163,130,147 |
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