A:
Positive:
1 x 6665766355 x 13331532767 x 9948905229 x 2910815335 x 19897811145 x 5821638689 x 7671515343 x 43445
Negative:
-1 x -666576635-5 x -133315327-67 x -9948905-229 x -2910815-335 x -1989781-1145 x -582163-8689 x -76715-15343 x -43445
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 666,576,635, 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 | 666,576,635 | |
| -1 | -666,576,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 666,576,635.
Example:
1 x 666,576,635 = 666,576,635
and
-1 x -666,576,635 = 666,576,635
Notice both answers equal 666,576,635
With that explanation out of the way, let's continue. Next, we take the number 666,576,635 and divide it by 2:
666,576,635 ÷ 2 = 333,288,317.5
If the quotient is a whole number, then 2 and 333,288,317.5 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 | 666,576,635 | |
| -1 | -666,576,635 |
Now, we try dividing 666,576,635 by 3:
666,576,635 ÷ 3 = 222,192,211.6667
If the quotient is a whole number, then 3 and 222,192,211.6667 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 | 666,576,635 | |
| -1 | -666,576,635 |
Let's try dividing by 4:
666,576,635 ÷ 4 = 166,644,158.75
If the quotient is a whole number, then 4 and 166,644,158.75 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 | 666,576,635 | |
| -1 | 666,576,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 229 | 335 | 1,145 | 8,689 | 15,343 | 43,445 | 76,715 | 582,163 | 1,989,781 | 2,910,815 | 9,948,905 | 133,315,327 | 666,576,635 |
| -1 | -5 | -67 | -229 | -335 | -1,145 | -8,689 | -15,343 | -43,445 | -76,715 | -582,163 | -1,989,781 | -2,910,815 | -9,948,905 | -133,315,327 | -666,576,635 |
Here are some more numbers to try:
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