A:
Positive:
1 x 207226755 x 414453525 x 82890729 x 714575101 x 205175145 x 142915283 x 73225505 x 41035725 x 285831415 x 146452525 x 82072929 x 7075
Negative:
-1 x -20722675-5 x -4144535-25 x -828907-29 x -714575-101 x -205175-145 x -142915-283 x -73225-505 x -41035-725 x -28583-1415 x -14645-2525 x -8207-2929 x -7075
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 20,722,675, 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 | 20,722,675 | |
| -1 | -20,722,675 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,722,675.
Example:
1 x 20,722,675 = 20,722,675
and
-1 x -20,722,675 = 20,722,675
Notice both answers equal 20,722,675
With that explanation out of the way, let's continue. Next, we take the number 20,722,675 and divide it by 2:
20,722,675 ÷ 2 = 10,361,337.5
If the quotient is a whole number, then 2 and 10,361,337.5 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 | 20,722,675 | |
| -1 | -20,722,675 |
Now, we try dividing 20,722,675 by 3:
20,722,675 ÷ 3 = 6,907,558.3333
If the quotient is a whole number, then 3 and 6,907,558.3333 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 | 20,722,675 | |
| -1 | -20,722,675 |
Let's try dividing by 4:
20,722,675 ÷ 4 = 5,180,668.75
If the quotient is a whole number, then 4 and 5,180,668.75 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 | 20,722,675 | |
| -1 | 20,722,675 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 29 | 101 | 145 | 283 | 505 | 725 | 1,415 | 2,525 | 2,929 | 7,075 | 8,207 | 14,645 | 28,583 | 41,035 | 73,225 | 142,915 | 205,175 | 714,575 | 828,907 | 4,144,535 | 20,722,675 |
| -1 | -5 | -25 | -29 | -101 | -145 | -283 | -505 | -725 | -1,415 | -2,525 | -2,929 | -7,075 | -8,207 | -14,645 | -28,583 | -41,035 | -73,225 | -142,915 | -205,175 | -714,575 | -828,907 | -4,144,535 | -20,722,675 |
Here are some more numbers to try:
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