A:
Positive:
1 x 1188718377 x 1698169117 x 6992461119 x 998923617 x 1926611619 x 734234319 x 2752310489 x 11333
Negative:
-1 x -118871837-7 x -16981691-17 x -6992461-119 x -998923-617 x -192661-1619 x -73423-4319 x -27523-10489 x -11333
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 118,871,837, 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 | 118,871,837 | |
| -1 | -118,871,837 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 118,871,837.
Example:
1 x 118,871,837 = 118,871,837
and
-1 x -118,871,837 = 118,871,837
Notice both answers equal 118,871,837
With that explanation out of the way, let's continue. Next, we take the number 118,871,837 and divide it by 2:
118,871,837 ÷ 2 = 59,435,918.5
If the quotient is a whole number, then 2 and 59,435,918.5 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 | 118,871,837 | |
| -1 | -118,871,837 |
Now, we try dividing 118,871,837 by 3:
118,871,837 ÷ 3 = 39,623,945.6667
If the quotient is a whole number, then 3 and 39,623,945.6667 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 | 118,871,837 | |
| -1 | -118,871,837 |
Let's try dividing by 4:
118,871,837 ÷ 4 = 29,717,959.25
If the quotient is a whole number, then 4 and 29,717,959.25 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 | 118,871,837 | |
| -1 | 118,871,837 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 617 | 1,619 | 4,319 | 10,489 | 11,333 | 27,523 | 73,423 | 192,661 | 998,923 | 6,992,461 | 16,981,691 | 118,871,837 |
| -1 | -7 | -17 | -119 | -617 | -1,619 | -4,319 | -10,489 | -11,333 | -27,523 | -73,423 | -192,661 | -998,923 | -6,992,461 | -16,981,691 | -118,871,837 |
Here are some more numbers to try:
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