A:
Positive:
1 x 1871011737 x 2672873983 x 2254231251 x 745423581 x 3220331283 x 1458311757 x 1064898981 x 20833
Negative:
-1 x -187101173-7 x -26728739-83 x -2254231-251 x -745423-581 x -322033-1283 x -145831-1757 x -106489-8981 x -20833
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 187,101,173, 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 | 187,101,173 | |
| -1 | -187,101,173 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 187,101,173.
Example:
1 x 187,101,173 = 187,101,173
and
-1 x -187,101,173 = 187,101,173
Notice both answers equal 187,101,173
With that explanation out of the way, let's continue. Next, we take the number 187,101,173 and divide it by 2:
187,101,173 ÷ 2 = 93,550,586.5
If the quotient is a whole number, then 2 and 93,550,586.5 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 | 187,101,173 | |
| -1 | -187,101,173 |
Now, we try dividing 187,101,173 by 3:
187,101,173 ÷ 3 = 62,367,057.6667
If the quotient is a whole number, then 3 and 62,367,057.6667 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 | 187,101,173 | |
| -1 | -187,101,173 |
Let's try dividing by 4:
187,101,173 ÷ 4 = 46,775,293.25
If the quotient is a whole number, then 4 and 46,775,293.25 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 | 187,101,173 | |
| -1 | 187,101,173 |
If you did it right, you will end up with this table:
| 1 | 7 | 83 | 251 | 581 | 1,283 | 1,757 | 8,981 | 20,833 | 106,489 | 145,831 | 322,033 | 745,423 | 2,254,231 | 26,728,739 | 187,101,173 |
| -1 | -7 | -83 | -251 | -581 | -1,283 | -1,757 | -8,981 | -20,833 | -106,489 | -145,831 | -322,033 | -745,423 | -2,254,231 | -26,728,739 | -187,101,173 |
Here are some more numbers to try:
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