A:
Positive:
1 x 1207047597 x 1724353723 x 5248033161 x 749719521 x 2316791439 x 838813647 x 3309710073 x 11983
Negative:
-1 x -120704759-7 x -17243537-23 x -5248033-161 x -749719-521 x -231679-1439 x -83881-3647 x -33097-10073 x -11983
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 120,704,759, 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 | 120,704,759 | |
| -1 | -120,704,759 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,704,759.
Example:
1 x 120,704,759 = 120,704,759
and
-1 x -120,704,759 = 120,704,759
Notice both answers equal 120,704,759
With that explanation out of the way, let's continue. Next, we take the number 120,704,759 and divide it by 2:
120,704,759 ÷ 2 = 60,352,379.5
If the quotient is a whole number, then 2 and 60,352,379.5 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 | 120,704,759 | |
| -1 | -120,704,759 |
Now, we try dividing 120,704,759 by 3:
120,704,759 ÷ 3 = 40,234,919.6667
If the quotient is a whole number, then 3 and 40,234,919.6667 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 | 120,704,759 | |
| -1 | -120,704,759 |
Let's try dividing by 4:
120,704,759 ÷ 4 = 30,176,189.75
If the quotient is a whole number, then 4 and 30,176,189.75 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 | 120,704,759 | |
| -1 | 120,704,759 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 161 | 521 | 1,439 | 3,647 | 10,073 | 11,983 | 33,097 | 83,881 | 231,679 | 749,719 | 5,248,033 | 17,243,537 | 120,704,759 |
| -1 | -7 | -23 | -161 | -521 | -1,439 | -3,647 | -10,073 | -11,983 | -33,097 | -83,881 | -231,679 | -749,719 | -5,248,033 | -17,243,537 | -120,704,759 |
Here are some more numbers to try:
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