A:
Positive:
1 x 166096455 x 332192913 x 127766531 x 53579565 x 255533155 x 107159403 x 412152015 x 8243
Negative:
-1 x -16609645-5 x -3321929-13 x -1277665-31 x -535795-65 x -255533-155 x -107159-403 x -41215-2015 x -8243
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 16,609,645, 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 | 16,609,645 | |
| -1 | -16,609,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,609,645.
Example:
1 x 16,609,645 = 16,609,645
and
-1 x -16,609,645 = 16,609,645
Notice both answers equal 16,609,645
With that explanation out of the way, let's continue. Next, we take the number 16,609,645 and divide it by 2:
16,609,645 ÷ 2 = 8,304,822.5
If the quotient is a whole number, then 2 and 8,304,822.5 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 | 16,609,645 | |
| -1 | -16,609,645 |
Now, we try dividing 16,609,645 by 3:
16,609,645 ÷ 3 = 5,536,548.3333
If the quotient is a whole number, then 3 and 5,536,548.3333 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 | 16,609,645 | |
| -1 | -16,609,645 |
Let's try dividing by 4:
16,609,645 ÷ 4 = 4,152,411.25
If the quotient is a whole number, then 4 and 4,152,411.25 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 | 16,609,645 | |
| -1 | 16,609,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 31 | 65 | 155 | 403 | 2,015 | 8,243 | 41,215 | 107,159 | 255,533 | 535,795 | 1,277,665 | 3,321,929 | 16,609,645 |
| -1 | -5 | -13 | -31 | -65 | -155 | -403 | -2,015 | -8,243 | -41,215 | -107,159 | -255,533 | -535,795 | -1,277,665 | -3,321,929 | -16,609,645 |
Here are some more numbers to try:
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