A:
Positive:
1 x 168210777 x 240301113 x 129392959 x 28510391 x 184847169 x 99533241 x 69797413 x 40729767 x 219311183 x 142191687 x 99713133 x 5369
Negative:
-1 x -16821077-7 x -2403011-13 x -1293929-59 x -285103-91 x -184847-169 x -99533-241 x -69797-413 x -40729-767 x -21931-1183 x -14219-1687 x -9971-3133 x -5369
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 16,821,077, 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 | 16,821,077 | |
| -1 | -16,821,077 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,821,077.
Example:
1 x 16,821,077 = 16,821,077
and
-1 x -16,821,077 = 16,821,077
Notice both answers equal 16,821,077
With that explanation out of the way, let's continue. Next, we take the number 16,821,077 and divide it by 2:
16,821,077 ÷ 2 = 8,410,538.5
If the quotient is a whole number, then 2 and 8,410,538.5 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 | 16,821,077 | |
| -1 | -16,821,077 |
Now, we try dividing 16,821,077 by 3:
16,821,077 ÷ 3 = 5,607,025.6667
If the quotient is a whole number, then 3 and 5,607,025.6667 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 | 16,821,077 | |
| -1 | -16,821,077 |
Let's try dividing by 4:
16,821,077 ÷ 4 = 4,205,269.25
If the quotient is a whole number, then 4 and 4,205,269.25 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 | 16,821,077 | |
| -1 | 16,821,077 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 59 | 91 | 169 | 241 | 413 | 767 | 1,183 | 1,687 | 3,133 | 5,369 | 9,971 | 14,219 | 21,931 | 40,729 | 69,797 | 99,533 | 184,847 | 285,103 | 1,293,929 | 2,403,011 | 16,821,077 |
| -1 | -7 | -13 | -59 | -91 | -169 | -241 | -413 | -767 | -1,183 | -1,687 | -3,133 | -5,369 | -9,971 | -14,219 | -21,931 | -40,729 | -69,797 | -99,533 | -184,847 | -285,103 | -1,293,929 | -2,403,011 | -16,821,077 |
Here are some more numbers to try:
Try the factor calculator