A:
Positive:
1 x 1656663055 x 331332617 x 2366661535 x 473332347 x 352481549 x 3380945235 x 704963245 x 676189329 x 5035451645 x 1007092303 x 7193511515 x 14387
Negative:
-1 x -165666305-5 x -33133261-7 x -23666615-35 x -4733323-47 x -3524815-49 x -3380945-235 x -704963-245 x -676189-329 x -503545-1645 x -100709-2303 x -71935-11515 x -14387
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 165,666,305, 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 | 165,666,305 | |
| -1 | -165,666,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 165,666,305.
Example:
1 x 165,666,305 = 165,666,305
and
-1 x -165,666,305 = 165,666,305
Notice both answers equal 165,666,305
With that explanation out of the way, let's continue. Next, we take the number 165,666,305 and divide it by 2:
165,666,305 ÷ 2 = 82,833,152.5
If the quotient is a whole number, then 2 and 82,833,152.5 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 | 165,666,305 | |
| -1 | -165,666,305 |
Now, we try dividing 165,666,305 by 3:
165,666,305 ÷ 3 = 55,222,101.6667
If the quotient is a whole number, then 3 and 55,222,101.6667 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 | 165,666,305 | |
| -1 | -165,666,305 |
Let's try dividing by 4:
165,666,305 ÷ 4 = 41,416,576.25
If the quotient is a whole number, then 4 and 41,416,576.25 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 | 165,666,305 | |
| -1 | 165,666,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 47 | 49 | 235 | 245 | 329 | 1,645 | 2,303 | 11,515 | 14,387 | 71,935 | 100,709 | 503,545 | 676,189 | 704,963 | 3,380,945 | 3,524,815 | 4,733,323 | 23,666,615 | 33,133,261 | 165,666,305 |
| -1 | -5 | -7 | -35 | -47 | -49 | -235 | -245 | -329 | -1,645 | -2,303 | -11,515 | -14,387 | -71,935 | -100,709 | -503,545 | -676,189 | -704,963 | -3,380,945 | -3,524,815 | -4,733,323 | -23,666,615 | -33,133,261 | -165,666,305 |
Here are some more numbers to try:
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