A:
Positive:
1 x 163532055 x 327064111 x 148665519 x 86069555 x 29733195 x 172139209 x 782451045 x 15649
Negative:
-1 x -16353205-5 x -3270641-11 x -1486655-19 x -860695-55 x -297331-95 x -172139-209 x -78245-1045 x -15649
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 16,353,205, 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 | 16,353,205 | |
| -1 | -16,353,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,353,205.
Example:
1 x 16,353,205 = 16,353,205
and
-1 x -16,353,205 = 16,353,205
Notice both answers equal 16,353,205
With that explanation out of the way, let's continue. Next, we take the number 16,353,205 and divide it by 2:
16,353,205 ÷ 2 = 8,176,602.5
If the quotient is a whole number, then 2 and 8,176,602.5 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 | 16,353,205 | |
| -1 | -16,353,205 |
Now, we try dividing 16,353,205 by 3:
16,353,205 ÷ 3 = 5,451,068.3333
If the quotient is a whole number, then 3 and 5,451,068.3333 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 | 16,353,205 | |
| -1 | -16,353,205 |
Let's try dividing by 4:
16,353,205 ÷ 4 = 4,088,301.25
If the quotient is a whole number, then 4 and 4,088,301.25 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 | 16,353,205 | |
| -1 | 16,353,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 19 | 55 | 95 | 209 | 1,045 | 15,649 | 78,245 | 172,139 | 297,331 | 860,695 | 1,486,655 | 3,270,641 | 16,353,205 |
| -1 | -5 | -11 | -19 | -55 | -95 | -209 | -1,045 | -15,649 | -78,245 | -172,139 | -297,331 | -860,695 | -1,486,655 | -3,270,641 | -16,353,205 |
Here are some more numbers to try:
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