A:
Positive:
1 x 78127077 x 111610117 x 45957149 x 15944383 x 94129113 x 69139119 x 65653581 x 13447791 x 9877833 x 93791411 x 55371921 x 4067
Negative:
-1 x -7812707-7 x -1116101-17 x -459571-49 x -159443-83 x -94129-113 x -69139-119 x -65653-581 x -13447-791 x -9877-833 x -9379-1411 x -5537-1921 x -4067
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 7,812,707, 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 | 7,812,707 | |
| -1 | -7,812,707 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,812,707.
Example:
1 x 7,812,707 = 7,812,707
and
-1 x -7,812,707 = 7,812,707
Notice both answers equal 7,812,707
With that explanation out of the way, let's continue. Next, we take the number 7,812,707 and divide it by 2:
7,812,707 ÷ 2 = 3,906,353.5
If the quotient is a whole number, then 2 and 3,906,353.5 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 | 7,812,707 | |
| -1 | -7,812,707 |
Now, we try dividing 7,812,707 by 3:
7,812,707 ÷ 3 = 2,604,235.6667
If the quotient is a whole number, then 3 and 2,604,235.6667 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 | 7,812,707 | |
| -1 | -7,812,707 |
Let's try dividing by 4:
7,812,707 ÷ 4 = 1,953,176.75
If the quotient is a whole number, then 4 and 1,953,176.75 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 | 7,812,707 | |
| -1 | 7,812,707 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 49 | 83 | 113 | 119 | 581 | 791 | 833 | 1,411 | 1,921 | 4,067 | 5,537 | 9,379 | 9,877 | 13,447 | 65,653 | 69,139 | 94,129 | 159,443 | 459,571 | 1,116,101 | 7,812,707 |
| -1 | -7 | -17 | -49 | -83 | -113 | -119 | -581 | -791 | -833 | -1,411 | -1,921 | -4,067 | -5,537 | -9,379 | -9,877 | -13,447 | -65,653 | -69,139 | -94,129 | -159,443 | -459,571 | -1,116,101 | -7,812,707 |
Here are some more numbers to try:
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