A:
Positive:
1 x 76665055 x 15333017 x 109521511 x 69695535 x 21904355 x 13939177 x 99565385 x 19913
Negative:
-1 x -7666505-5 x -1533301-7 x -1095215-11 x -696955-35 x -219043-55 x -139391-77 x -99565-385 x -19913
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 7,666,505, 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 | 7,666,505 | |
| -1 | -7,666,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,666,505.
Example:
1 x 7,666,505 = 7,666,505
and
-1 x -7,666,505 = 7,666,505
Notice both answers equal 7,666,505
With that explanation out of the way, let's continue. Next, we take the number 7,666,505 and divide it by 2:
7,666,505 ÷ 2 = 3,833,252.5
If the quotient is a whole number, then 2 and 3,833,252.5 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 | 7,666,505 | |
| -1 | -7,666,505 |
Now, we try dividing 7,666,505 by 3:
7,666,505 ÷ 3 = 2,555,501.6667
If the quotient is a whole number, then 3 and 2,555,501.6667 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 | 7,666,505 | |
| -1 | -7,666,505 |
Let's try dividing by 4:
7,666,505 ÷ 4 = 1,916,626.25
If the quotient is a whole number, then 4 and 1,916,626.25 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 | 7,666,505 | |
| -1 | 7,666,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 19,913 | 99,565 | 139,391 | 219,043 | 696,955 | 1,095,215 | 1,533,301 | 7,666,505 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -19,913 | -99,565 | -139,391 | -219,043 | -696,955 | -1,095,215 | -1,533,301 | -7,666,505 |
Here are some more numbers to try:
Try the factor calculator