A:
Positive:
1 x 4183036855 x 8366073729 x 1442426537 x 11305505145 x 2884853185 x 22611011073 x 3898455365 x 77969
Negative:
-1 x -418303685-5 x -83660737-29 x -14424265-37 x -11305505-145 x -2884853-185 x -2261101-1073 x -389845-5365 x -77969
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 418,303,685, 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 | 418,303,685 | |
| -1 | -418,303,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 418,303,685.
Example:
1 x 418,303,685 = 418,303,685
and
-1 x -418,303,685 = 418,303,685
Notice both answers equal 418,303,685
With that explanation out of the way, let's continue. Next, we take the number 418,303,685 and divide it by 2:
418,303,685 ÷ 2 = 209,151,842.5
If the quotient is a whole number, then 2 and 209,151,842.5 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 | 418,303,685 | |
| -1 | -418,303,685 |
Now, we try dividing 418,303,685 by 3:
418,303,685 ÷ 3 = 139,434,561.6667
If the quotient is a whole number, then 3 and 139,434,561.6667 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 | 418,303,685 | |
| -1 | -418,303,685 |
Let's try dividing by 4:
418,303,685 ÷ 4 = 104,575,921.25
If the quotient is a whole number, then 4 and 104,575,921.25 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 | 418,303,685 | |
| -1 | 418,303,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 37 | 145 | 185 | 1,073 | 5,365 | 77,969 | 389,845 | 2,261,101 | 2,884,853 | 11,305,505 | 14,424,265 | 83,660,737 | 418,303,685 |
| -1 | -5 | -29 | -37 | -145 | -185 | -1,073 | -5,365 | -77,969 | -389,845 | -2,261,101 | -2,884,853 | -11,305,505 | -14,424,265 | -83,660,737 | -418,303,685 |
Here are some more numbers to try:
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