A:
Positive:
1 x 162056355 x 324112729 x 55881573 x 221995145 x 111763365 x 443991531 x 105852117 x 7655
Negative:
-1 x -16205635-5 x -3241127-29 x -558815-73 x -221995-145 x -111763-365 x -44399-1531 x -10585-2117 x -7655
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 16,205,635, 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 | 16,205,635 | |
| -1 | -16,205,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,205,635.
Example:
1 x 16,205,635 = 16,205,635
and
-1 x -16,205,635 = 16,205,635
Notice both answers equal 16,205,635
With that explanation out of the way, let's continue. Next, we take the number 16,205,635 and divide it by 2:
16,205,635 ÷ 2 = 8,102,817.5
If the quotient is a whole number, then 2 and 8,102,817.5 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 | 16,205,635 | |
| -1 | -16,205,635 |
Now, we try dividing 16,205,635 by 3:
16,205,635 ÷ 3 = 5,401,878.3333
If the quotient is a whole number, then 3 and 5,401,878.3333 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 | 16,205,635 | |
| -1 | -16,205,635 |
Let's try dividing by 4:
16,205,635 ÷ 4 = 4,051,408.75
If the quotient is a whole number, then 4 and 4,051,408.75 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 | 16,205,635 | |
| -1 | 16,205,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 73 | 145 | 365 | 1,531 | 2,117 | 7,655 | 10,585 | 44,399 | 111,763 | 221,995 | 558,815 | 3,241,127 | 16,205,635 |
| -1 | -5 | -29 | -73 | -145 | -365 | -1,531 | -2,117 | -7,655 | -10,585 | -44,399 | -111,763 | -221,995 | -558,815 | -3,241,127 | -16,205,635 |
Here are some more numbers to try:
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