A:
Positive:
1 x 12005132919 x 631849123 x 521962329 x 4139701437 x 274717551 x 217879667 x 1799879473 x 12673
Negative:
-1 x -120051329-19 x -6318491-23 x -5219623-29 x -4139701-437 x -274717-551 x -217879-667 x -179987-9473 x -12673
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 120,051,329, 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 | 120,051,329 | |
| -1 | -120,051,329 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,051,329.
Example:
1 x 120,051,329 = 120,051,329
and
-1 x -120,051,329 = 120,051,329
Notice both answers equal 120,051,329
With that explanation out of the way, let's continue. Next, we take the number 120,051,329 and divide it by 2:
120,051,329 ÷ 2 = 60,025,664.5
If the quotient is a whole number, then 2 and 60,025,664.5 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 | 120,051,329 | |
| -1 | -120,051,329 |
Now, we try dividing 120,051,329 by 3:
120,051,329 ÷ 3 = 40,017,109.6667
If the quotient is a whole number, then 3 and 40,017,109.6667 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 | 120,051,329 | |
| -1 | -120,051,329 |
Let's try dividing by 4:
120,051,329 ÷ 4 = 30,012,832.25
If the quotient is a whole number, then 4 and 30,012,832.25 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 | 120,051,329 | |
| -1 | 120,051,329 |
If you did it right, you will end up with this table:
| 1 | 19 | 23 | 29 | 437 | 551 | 667 | 9,473 | 12,673 | 179,987 | 217,879 | 274,717 | 4,139,701 | 5,219,623 | 6,318,491 | 120,051,329 |
| -1 | -19 | -23 | -29 | -437 | -551 | -667 | -9,473 | -12,673 | -179,987 | -217,879 | -274,717 | -4,139,701 | -5,219,623 | -6,318,491 | -120,051,329 |
Here are some more numbers to try:
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