A:
Positive:
1 x 1878251655 x 3756503311 x 1707501519 x 988553555 x 341500395 x 1977107209 x 8986851045 x 179737
Negative:
-1 x -187825165-5 x -37565033-11 x -17075015-19 x -9885535-55 x -3415003-95 x -1977107-209 x -898685-1045 x -179737
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 187,825,165, 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 | 187,825,165 | |
| -1 | -187,825,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 187,825,165.
Example:
1 x 187,825,165 = 187,825,165
and
-1 x -187,825,165 = 187,825,165
Notice both answers equal 187,825,165
With that explanation out of the way, let's continue. Next, we take the number 187,825,165 and divide it by 2:
187,825,165 ÷ 2 = 93,912,582.5
If the quotient is a whole number, then 2 and 93,912,582.5 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 | 187,825,165 | |
| -1 | -187,825,165 |
Now, we try dividing 187,825,165 by 3:
187,825,165 ÷ 3 = 62,608,388.3333
If the quotient is a whole number, then 3 and 62,608,388.3333 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 | 187,825,165 | |
| -1 | -187,825,165 |
Let's try dividing by 4:
187,825,165 ÷ 4 = 46,956,291.25
If the quotient is a whole number, then 4 and 46,956,291.25 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 | 187,825,165 | |
| -1 | 187,825,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 19 | 55 | 95 | 209 | 1,045 | 179,737 | 898,685 | 1,977,107 | 3,415,003 | 9,885,535 | 17,075,015 | 37,565,033 | 187,825,165 |
| -1 | -5 | -11 | -19 | -55 | -95 | -209 | -1,045 | -179,737 | -898,685 | -1,977,107 | -3,415,003 | -9,885,535 | -17,075,015 | -37,565,033 | -187,825,165 |
Here are some more numbers to try:
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