A:
Positive:
1 x 11912397 x 17017723 x 5179349 x 24311151 x 7889161 x 7399343 x 34731057 x 1127
Negative:
-1 x -1191239-7 x -170177-23 x -51793-49 x -24311-151 x -7889-161 x -7399-343 x -3473-1057 x -1127
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 1,191,239, 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 | 1,191,239 | |
| -1 | -1,191,239 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,191,239.
Example:
1 x 1,191,239 = 1,191,239
and
-1 x -1,191,239 = 1,191,239
Notice both answers equal 1,191,239
With that explanation out of the way, let's continue. Next, we take the number 1,191,239 and divide it by 2:
1,191,239 ÷ 2 = 595,619.5
If the quotient is a whole number, then 2 and 595,619.5 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 | 1,191,239 | |
| -1 | -1,191,239 |
Now, we try dividing 1,191,239 by 3:
1,191,239 ÷ 3 = 397,079.6667
If the quotient is a whole number, then 3 and 397,079.6667 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 | 1,191,239 | |
| -1 | -1,191,239 |
Let's try dividing by 4:
1,191,239 ÷ 4 = 297,809.75
If the quotient is a whole number, then 4 and 297,809.75 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 | 1,191,239 | |
| -1 | 1,191,239 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 49 | 151 | 161 | 343 | 1,057 | 1,127 | 3,473 | 7,399 | 7,889 | 24,311 | 51,793 | 170,177 | 1,191,239 |
| -1 | -7 | -23 | -49 | -151 | -161 | -343 | -1,057 | -1,127 | -3,473 | -7,399 | -7,889 | -24,311 | -51,793 | -170,177 | -1,191,239 |
Here are some more numbers to try:
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