A:
Positive:
1 x 76255155 x 152510337 x 20609547 x 162245185 x 41219235 x 32449877 x 86951739 x 4385
Negative:
-1 x -7625515-5 x -1525103-37 x -206095-47 x -162245-185 x -41219-235 x -32449-877 x -8695-1739 x -4385
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 7,625,515, 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 | 7,625,515 | |
| -1 | -7,625,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,625,515.
Example:
1 x 7,625,515 = 7,625,515
and
-1 x -7,625,515 = 7,625,515
Notice both answers equal 7,625,515
With that explanation out of the way, let's continue. Next, we take the number 7,625,515 and divide it by 2:
7,625,515 ÷ 2 = 3,812,757.5
If the quotient is a whole number, then 2 and 3,812,757.5 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 | 7,625,515 | |
| -1 | -7,625,515 |
Now, we try dividing 7,625,515 by 3:
7,625,515 ÷ 3 = 2,541,838.3333
If the quotient is a whole number, then 3 and 2,541,838.3333 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 | 7,625,515 | |
| -1 | -7,625,515 |
Let's try dividing by 4:
7,625,515 ÷ 4 = 1,906,378.75
If the quotient is a whole number, then 4 and 1,906,378.75 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 | 7,625,515 | |
| -1 | 7,625,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 47 | 185 | 235 | 877 | 1,739 | 4,385 | 8,695 | 32,449 | 41,219 | 162,245 | 206,095 | 1,525,103 | 7,625,515 |
| -1 | -5 | -37 | -47 | -185 | -235 | -877 | -1,739 | -4,385 | -8,695 | -32,449 | -41,219 | -162,245 | -206,095 | -1,525,103 | -7,625,515 |
Here are some more numbers to try:
Try the factor calculator