A:
Positive:
1 x 160778455 x 32155697 x 229683535 x 459367149 x 107905745 x 215811043 x 154153083 x 5215
Negative:
-1 x -16077845-5 x -3215569-7 x -2296835-35 x -459367-149 x -107905-745 x -21581-1043 x -15415-3083 x -5215
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 16,077,845, 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 | 16,077,845 | |
| -1 | -16,077,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,077,845.
Example:
1 x 16,077,845 = 16,077,845
and
-1 x -16,077,845 = 16,077,845
Notice both answers equal 16,077,845
With that explanation out of the way, let's continue. Next, we take the number 16,077,845 and divide it by 2:
16,077,845 ÷ 2 = 8,038,922.5
If the quotient is a whole number, then 2 and 8,038,922.5 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 | 16,077,845 | |
| -1 | -16,077,845 |
Now, we try dividing 16,077,845 by 3:
16,077,845 ÷ 3 = 5,359,281.6667
If the quotient is a whole number, then 3 and 5,359,281.6667 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 | 16,077,845 | |
| -1 | -16,077,845 |
Let's try dividing by 4:
16,077,845 ÷ 4 = 4,019,461.25
If the quotient is a whole number, then 4 and 4,019,461.25 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 | 16,077,845 | |
| -1 | 16,077,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 149 | 745 | 1,043 | 3,083 | 5,215 | 15,415 | 21,581 | 107,905 | 459,367 | 2,296,835 | 3,215,569 | 16,077,845 |
| -1 | -5 | -7 | -35 | -149 | -745 | -1,043 | -3,083 | -5,215 | -15,415 | -21,581 | -107,905 | -459,367 | -2,296,835 | -3,215,569 | -16,077,845 |
Here are some more numbers to try:
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