A:
Positive:
1 x 11872255 x 23744513 x 9132525 x 4748965 x 18265169 x 7025281 x 4225325 x 3653845 x 1405
Negative:
-1 x -1187225-5 x -237445-13 x -91325-25 x -47489-65 x -18265-169 x -7025-281 x -4225-325 x -3653-845 x -1405
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 1,187,225, 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 | 1,187,225 | |
| -1 | -1,187,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,187,225.
Example:
1 x 1,187,225 = 1,187,225
and
-1 x -1,187,225 = 1,187,225
Notice both answers equal 1,187,225
With that explanation out of the way, let's continue. Next, we take the number 1,187,225 and divide it by 2:
1,187,225 ÷ 2 = 593,612.5
If the quotient is a whole number, then 2 and 593,612.5 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 | 1,187,225 | |
| -1 | -1,187,225 |
Now, we try dividing 1,187,225 by 3:
1,187,225 ÷ 3 = 395,741.6667
If the quotient is a whole number, then 3 and 395,741.6667 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 | 1,187,225 | |
| -1 | -1,187,225 |
Let's try dividing by 4:
1,187,225 ÷ 4 = 296,806.25
If the quotient is a whole number, then 4 and 296,806.25 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 | 1,187,225 | |
| -1 | 1,187,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 169 | 281 | 325 | 845 | 1,405 | 3,653 | 4,225 | 7,025 | 18,265 | 47,489 | 91,325 | 237,445 | 1,187,225 |
| -1 | -5 | -13 | -25 | -65 | -169 | -281 | -325 | -845 | -1,405 | -3,653 | -4,225 | -7,025 | -18,265 | -47,489 | -91,325 | -237,445 | -1,187,225 |
Here are some more numbers to try:
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