A:
Positive:
1 x 61112016119 x 3216421929 x 21073109509 x 1200629551 x 11091112179 x 2804599671 x 6319114761 x 41401
Negative:
-1 x -611120161-19 x -32164219-29 x -21073109-509 x -1200629-551 x -1109111-2179 x -280459-9671 x -63191-14761 x -41401
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 611,120,161, 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 | 611,120,161 | |
| -1 | -611,120,161 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 611,120,161.
Example:
1 x 611,120,161 = 611,120,161
and
-1 x -611,120,161 = 611,120,161
Notice both answers equal 611,120,161
With that explanation out of the way, let's continue. Next, we take the number 611,120,161 and divide it by 2:
611,120,161 ÷ 2 = 305,560,080.5
If the quotient is a whole number, then 2 and 305,560,080.5 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 | 611,120,161 | |
| -1 | -611,120,161 |
Now, we try dividing 611,120,161 by 3:
611,120,161 ÷ 3 = 203,706,720.3333
If the quotient is a whole number, then 3 and 203,706,720.3333 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 | 611,120,161 | |
| -1 | -611,120,161 |
Let's try dividing by 4:
611,120,161 ÷ 4 = 152,780,040.25
If the quotient is a whole number, then 4 and 152,780,040.25 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 | 611,120,161 | |
| -1 | 611,120,161 |
If you did it right, you will end up with this table:
| 1 | 19 | 29 | 509 | 551 | 2,179 | 9,671 | 14,761 | 41,401 | 63,191 | 280,459 | 1,109,111 | 1,200,629 | 21,073,109 | 32,164,219 | 611,120,161 |
| -1 | -19 | -29 | -509 | -551 | -2,179 | -9,671 | -14,761 | -41,401 | -63,191 | -280,459 | -1,109,111 | -1,200,629 | -21,073,109 | -32,164,219 | -611,120,161 |
Here are some more numbers to try:
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