A:
Positive:
1 x 1213026297 x 1732894747 x 258090767 x 1810487329 x 368701469 x 2586413149 x 385215503 x 22043
Negative:
-1 x -121302629-7 x -17328947-47 x -2580907-67 x -1810487-329 x -368701-469 x -258641-3149 x -38521-5503 x -22043
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 121,302,629, 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 | 121,302,629 | |
| -1 | -121,302,629 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,302,629.
Example:
1 x 121,302,629 = 121,302,629
and
-1 x -121,302,629 = 121,302,629
Notice both answers equal 121,302,629
With that explanation out of the way, let's continue. Next, we take the number 121,302,629 and divide it by 2:
121,302,629 ÷ 2 = 60,651,314.5
If the quotient is a whole number, then 2 and 60,651,314.5 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 | 121,302,629 | |
| -1 | -121,302,629 |
Now, we try dividing 121,302,629 by 3:
121,302,629 ÷ 3 = 40,434,209.6667
If the quotient is a whole number, then 3 and 40,434,209.6667 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 | 121,302,629 | |
| -1 | -121,302,629 |
Let's try dividing by 4:
121,302,629 ÷ 4 = 30,325,657.25
If the quotient is a whole number, then 4 and 30,325,657.25 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 | 121,302,629 | |
| -1 | 121,302,629 |
If you did it right, you will end up with this table:
| 1 | 7 | 47 | 67 | 329 | 469 | 3,149 | 5,503 | 22,043 | 38,521 | 258,641 | 368,701 | 1,810,487 | 2,580,907 | 17,328,947 | 121,302,629 |
| -1 | -7 | -47 | -67 | -329 | -469 | -3,149 | -5,503 | -22,043 | -38,521 | -258,641 | -368,701 | -1,810,487 | -2,580,907 | -17,328,947 | -121,302,629 |
Here are some more numbers to try:
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