A:
Positive:
1 x 13950307319 x 734226723 x 606535173 x 1911001437 x 3192291387 x 1005791679 x 830874373 x 31901
Negative:
-1 x -139503073-19 x -7342267-23 x -6065351-73 x -1911001-437 x -319229-1387 x -100579-1679 x -83087-4373 x -31901
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 139,503,073, 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 | 139,503,073 | |
| -1 | -139,503,073 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 139,503,073.
Example:
1 x 139,503,073 = 139,503,073
and
-1 x -139,503,073 = 139,503,073
Notice both answers equal 139,503,073
With that explanation out of the way, let's continue. Next, we take the number 139,503,073 and divide it by 2:
139,503,073 ÷ 2 = 69,751,536.5
If the quotient is a whole number, then 2 and 69,751,536.5 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 | 139,503,073 | |
| -1 | -139,503,073 |
Now, we try dividing 139,503,073 by 3:
139,503,073 ÷ 3 = 46,501,024.3333
If the quotient is a whole number, then 3 and 46,501,024.3333 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 | 139,503,073 | |
| -1 | -139,503,073 |
Let's try dividing by 4:
139,503,073 ÷ 4 = 34,875,768.25
If the quotient is a whole number, then 4 and 34,875,768.25 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 | 139,503,073 | |
| -1 | 139,503,073 |
If you did it right, you will end up with this table:
| 1 | 19 | 23 | 73 | 437 | 1,387 | 1,679 | 4,373 | 31,901 | 83,087 | 100,579 | 319,229 | 1,911,001 | 6,065,351 | 7,342,267 | 139,503,073 |
| -1 | -19 | -23 | -73 | -437 | -1,387 | -1,679 | -4,373 | -31,901 | -83,087 | -100,579 | -319,229 | -1,911,001 | -6,065,351 | -7,342,267 | -139,503,073 |
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