A:
Positive:
1 x 76643055 x 153286111 x 69675555 x 139351331 x 23155421 x 182051655 x 46312105 x 3641
Negative:
-1 x -7664305-5 x -1532861-11 x -696755-55 x -139351-331 x -23155-421 x -18205-1655 x -4631-2105 x -3641
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 7,664,305, 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 | 7,664,305 | |
| -1 | -7,664,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,664,305.
Example:
1 x 7,664,305 = 7,664,305
and
-1 x -7,664,305 = 7,664,305
Notice both answers equal 7,664,305
With that explanation out of the way, let's continue. Next, we take the number 7,664,305 and divide it by 2:
7,664,305 ÷ 2 = 3,832,152.5
If the quotient is a whole number, then 2 and 3,832,152.5 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 | 7,664,305 | |
| -1 | -7,664,305 |
Now, we try dividing 7,664,305 by 3:
7,664,305 ÷ 3 = 2,554,768.3333
If the quotient is a whole number, then 3 and 2,554,768.3333 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 | 7,664,305 | |
| -1 | -7,664,305 |
Let's try dividing by 4:
7,664,305 ÷ 4 = 1,916,076.25
If the quotient is a whole number, then 4 and 1,916,076.25 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 | 7,664,305 | |
| -1 | 7,664,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 331 | 421 | 1,655 | 2,105 | 3,641 | 4,631 | 18,205 | 23,155 | 139,351 | 696,755 | 1,532,861 | 7,664,305 |
| -1 | -5 | -11 | -55 | -331 | -421 | -1,655 | -2,105 | -3,641 | -4,631 | -18,205 | -23,155 | -139,351 | -696,755 | -1,532,861 | -7,664,305 |
Here are some more numbers to try:
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