A:
Positive:
1 x 663507117 x 947867317 x 3902983119 x 557569233 x 2847671631 x 406812393 x 277273961 x 16751
Negative:
-1 x -66350711-7 x -9478673-17 x -3902983-119 x -557569-233 x -284767-1631 x -40681-2393 x -27727-3961 x -16751
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 66,350,711, 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 | 66,350,711 | |
| -1 | -66,350,711 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,350,711.
Example:
1 x 66,350,711 = 66,350,711
and
-1 x -66,350,711 = 66,350,711
Notice both answers equal 66,350,711
With that explanation out of the way, let's continue. Next, we take the number 66,350,711 and divide it by 2:
66,350,711 ÷ 2 = 33,175,355.5
If the quotient is a whole number, then 2 and 33,175,355.5 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 | 66,350,711 | |
| -1 | -66,350,711 |
Now, we try dividing 66,350,711 by 3:
66,350,711 ÷ 3 = 22,116,903.6667
If the quotient is a whole number, then 3 and 22,116,903.6667 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 | 66,350,711 | |
| -1 | -66,350,711 |
Let's try dividing by 4:
66,350,711 ÷ 4 = 16,587,677.75
If the quotient is a whole number, then 4 and 16,587,677.75 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 | 66,350,711 | |
| -1 | 66,350,711 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 233 | 1,631 | 2,393 | 3,961 | 16,751 | 27,727 | 40,681 | 284,767 | 557,569 | 3,902,983 | 9,478,673 | 66,350,711 |
| -1 | -7 | -17 | -119 | -233 | -1,631 | -2,393 | -3,961 | -16,751 | -27,727 | -40,681 | -284,767 | -557,569 | -3,902,983 | -9,478,673 | -66,350,711 |
Here are some more numbers to try:
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