A:
Positive:
1 x 121716355 x 24343277 x 173880535 x 34776161 x 199535305 x 39907427 x 285052135 x 5701
Negative:
-1 x -12171635-5 x -2434327-7 x -1738805-35 x -347761-61 x -199535-305 x -39907-427 x -28505-2135 x -5701
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 12,171,635, 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 | 12,171,635 | |
| -1 | -12,171,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,171,635.
Example:
1 x 12,171,635 = 12,171,635
and
-1 x -12,171,635 = 12,171,635
Notice both answers equal 12,171,635
With that explanation out of the way, let's continue. Next, we take the number 12,171,635 and divide it by 2:
12,171,635 ÷ 2 = 6,085,817.5
If the quotient is a whole number, then 2 and 6,085,817.5 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 | 12,171,635 | |
| -1 | -12,171,635 |
Now, we try dividing 12,171,635 by 3:
12,171,635 ÷ 3 = 4,057,211.6667
If the quotient is a whole number, then 3 and 4,057,211.6667 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 | 12,171,635 | |
| -1 | -12,171,635 |
Let's try dividing by 4:
12,171,635 ÷ 4 = 3,042,908.75
If the quotient is a whole number, then 4 and 3,042,908.75 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 | 12,171,635 | |
| -1 | 12,171,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 61 | 305 | 427 | 2,135 | 5,701 | 28,505 | 39,907 | 199,535 | 347,761 | 1,738,805 | 2,434,327 | 12,171,635 |
| -1 | -5 | -7 | -35 | -61 | -305 | -427 | -2,135 | -5,701 | -28,505 | -39,907 | -199,535 | -347,761 | -1,738,805 | -2,434,327 | -12,171,635 |
Here are some more numbers to try:
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