A:
Positive:
1 x 76879155 x 153758353 x 14505567 x 114745265 x 29011335 x 22949433 x 177552165 x 3551
Negative:
-1 x -7687915-5 x -1537583-53 x -145055-67 x -114745-265 x -29011-335 x -22949-433 x -17755-2165 x -3551
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 7,687,915, 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 | 7,687,915 | |
| -1 | -7,687,915 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,687,915.
Example:
1 x 7,687,915 = 7,687,915
and
-1 x -7,687,915 = 7,687,915
Notice both answers equal 7,687,915
With that explanation out of the way, let's continue. Next, we take the number 7,687,915 and divide it by 2:
7,687,915 ÷ 2 = 3,843,957.5
If the quotient is a whole number, then 2 and 3,843,957.5 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 | 7,687,915 | |
| -1 | -7,687,915 |
Now, we try dividing 7,687,915 by 3:
7,687,915 ÷ 3 = 2,562,638.3333
If the quotient is a whole number, then 3 and 2,562,638.3333 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 | 7,687,915 | |
| -1 | -7,687,915 |
Let's try dividing by 4:
7,687,915 ÷ 4 = 1,921,978.75
If the quotient is a whole number, then 4 and 1,921,978.75 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 | 7,687,915 | |
| -1 | 7,687,915 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 67 | 265 | 335 | 433 | 2,165 | 3,551 | 17,755 | 22,949 | 29,011 | 114,745 | 145,055 | 1,537,583 | 7,687,915 |
| -1 | -5 | -53 | -67 | -265 | -335 | -433 | -2,165 | -3,551 | -17,755 | -22,949 | -29,011 | -114,745 | -145,055 | -1,537,583 | -7,687,915 |
Here are some more numbers to try:
Try the factor calculator