A:
Positive:
1 x 665766555 x 13315331109 x 610795151 x 440905545 x 122159755 x 88181809 x 822954045 x 16459
Negative:
-1 x -66576655-5 x -13315331-109 x -610795-151 x -440905-545 x -122159-755 x -88181-809 x -82295-4045 x -16459
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 66,576,655, 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 | 66,576,655 | |
| -1 | -66,576,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,576,655.
Example:
1 x 66,576,655 = 66,576,655
and
-1 x -66,576,655 = 66,576,655
Notice both answers equal 66,576,655
With that explanation out of the way, let's continue. Next, we take the number 66,576,655 and divide it by 2:
66,576,655 ÷ 2 = 33,288,327.5
If the quotient is a whole number, then 2 and 33,288,327.5 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 | 66,576,655 | |
| -1 | -66,576,655 |
Now, we try dividing 66,576,655 by 3:
66,576,655 ÷ 3 = 22,192,218.3333
If the quotient is a whole number, then 3 and 22,192,218.3333 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 | 66,576,655 | |
| -1 | -66,576,655 |
Let's try dividing by 4:
66,576,655 ÷ 4 = 16,644,163.75
If the quotient is a whole number, then 4 and 16,644,163.75 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 | 66,576,655 | |
| -1 | 66,576,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 109 | 151 | 545 | 755 | 809 | 4,045 | 16,459 | 82,295 | 88,181 | 122,159 | 440,905 | 610,795 | 13,315,331 | 66,576,655 |
| -1 | -5 | -109 | -151 | -545 | -755 | -809 | -4,045 | -16,459 | -82,295 | -88,181 | -122,159 | -440,905 | -610,795 | -13,315,331 | -66,576,655 |
Here are some more numbers to try:
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