A:
Positive:
1 x 78631077 x 112330159 x 13327379 x 99533241 x 32627413 x 19039553 x 142191687 x 4661
Negative:
-1 x -7863107-7 x -1123301-59 x -133273-79 x -99533-241 x -32627-413 x -19039-553 x -14219-1687 x -4661
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 7,863,107, 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 | 7,863,107 | |
| -1 | -7,863,107 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,863,107.
Example:
1 x 7,863,107 = 7,863,107
and
-1 x -7,863,107 = 7,863,107
Notice both answers equal 7,863,107
With that explanation out of the way, let's continue. Next, we take the number 7,863,107 and divide it by 2:
7,863,107 ÷ 2 = 3,931,553.5
If the quotient is a whole number, then 2 and 3,931,553.5 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 | 7,863,107 | |
| -1 | -7,863,107 |
Now, we try dividing 7,863,107 by 3:
7,863,107 ÷ 3 = 2,621,035.6667
If the quotient is a whole number, then 3 and 2,621,035.6667 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 | 7,863,107 | |
| -1 | -7,863,107 |
Let's try dividing by 4:
7,863,107 ÷ 4 = 1,965,776.75
If the quotient is a whole number, then 4 and 1,965,776.75 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 | 7,863,107 | |
| -1 | 7,863,107 |
If you did it right, you will end up with this table:
| 1 | 7 | 59 | 79 | 241 | 413 | 553 | 1,687 | 4,661 | 14,219 | 19,039 | 32,627 | 99,533 | 133,273 | 1,123,301 | 7,863,107 |
| -1 | -7 | -59 | -79 | -241 | -413 | -553 | -1,687 | -4,661 | -14,219 | -19,039 | -32,627 | -99,533 | -133,273 | -1,123,301 | -7,863,107 |
Here are some more numbers to try:
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