A:
Positive:
1 x 11917155 x 2383437 x 17024535 x 3404979 x 15085395 x 3017431 x 2765553 x 2155
Negative:
-1 x -1191715-5 x -238343-7 x -170245-35 x -34049-79 x -15085-395 x -3017-431 x -2765-553 x -2155
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 1,191,715, 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 | 1,191,715 | |
| -1 | -1,191,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,191,715.
Example:
1 x 1,191,715 = 1,191,715
and
-1 x -1,191,715 = 1,191,715
Notice both answers equal 1,191,715
With that explanation out of the way, let's continue. Next, we take the number 1,191,715 and divide it by 2:
1,191,715 ÷ 2 = 595,857.5
If the quotient is a whole number, then 2 and 595,857.5 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 | 1,191,715 | |
| -1 | -1,191,715 |
Now, we try dividing 1,191,715 by 3:
1,191,715 ÷ 3 = 397,238.3333
If the quotient is a whole number, then 3 and 397,238.3333 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 | 1,191,715 | |
| -1 | -1,191,715 |
Let's try dividing by 4:
1,191,715 ÷ 4 = 297,928.75
If the quotient is a whole number, then 4 and 297,928.75 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 | 1,191,715 | |
| -1 | 1,191,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 79 | 395 | 431 | 553 | 2,155 | 2,765 | 3,017 | 15,085 | 34,049 | 170,245 | 238,343 | 1,191,715 |
| -1 | -5 | -7 | -35 | -79 | -395 | -431 | -553 | -2,155 | -2,765 | -3,017 | -15,085 | -34,049 | -170,245 | -238,343 | -1,191,715 |
Here are some more numbers to try:
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