A:
Positive:
1 x 165432197 x 236331711 x 150392977 x 214847181 x 913991187 x 139371267 x 130571991 x 8309
Negative:
-1 x -16543219-7 x -2363317-11 x -1503929-77 x -214847-181 x -91399-1187 x -13937-1267 x -13057-1991 x -8309
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 16,543,219, 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 | 16,543,219 | |
| -1 | -16,543,219 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,543,219.
Example:
1 x 16,543,219 = 16,543,219
and
-1 x -16,543,219 = 16,543,219
Notice both answers equal 16,543,219
With that explanation out of the way, let's continue. Next, we take the number 16,543,219 and divide it by 2:
16,543,219 ÷ 2 = 8,271,609.5
If the quotient is a whole number, then 2 and 8,271,609.5 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 | 16,543,219 | |
| -1 | -16,543,219 |
Now, we try dividing 16,543,219 by 3:
16,543,219 ÷ 3 = 5,514,406.3333
If the quotient is a whole number, then 3 and 5,514,406.3333 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 | 16,543,219 | |
| -1 | -16,543,219 |
Let's try dividing by 4:
16,543,219 ÷ 4 = 4,135,804.75
If the quotient is a whole number, then 4 and 4,135,804.75 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 | 16,543,219 | |
| -1 | 16,543,219 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 181 | 1,187 | 1,267 | 1,991 | 8,309 | 13,057 | 13,937 | 91,399 | 214,847 | 1,503,929 | 2,363,317 | 16,543,219 |
| -1 | -7 | -11 | -77 | -181 | -1,187 | -1,267 | -1,991 | -8,309 | -13,057 | -13,937 | -91,399 | -214,847 | -1,503,929 | -2,363,317 | -16,543,219 |
Here are some more numbers to try:
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