A:
Positive:
1 x 2024020713 x 155693923 x 880009139 x 145613299 x 67693487 x 415611807 x 112013197 x 6331
Negative:
-1 x -20240207-13 x -1556939-23 x -880009-139 x -145613-299 x -67693-487 x -41561-1807 x -11201-3197 x -6331
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 20,240,207, 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 | 20,240,207 | |
| -1 | -20,240,207 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,240,207.
Example:
1 x 20,240,207 = 20,240,207
and
-1 x -20,240,207 = 20,240,207
Notice both answers equal 20,240,207
With that explanation out of the way, let's continue. Next, we take the number 20,240,207 and divide it by 2:
20,240,207 ÷ 2 = 10,120,103.5
If the quotient is a whole number, then 2 and 10,120,103.5 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 | 20,240,207 | |
| -1 | -20,240,207 |
Now, we try dividing 20,240,207 by 3:
20,240,207 ÷ 3 = 6,746,735.6667
If the quotient is a whole number, then 3 and 6,746,735.6667 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 | 20,240,207 | |
| -1 | -20,240,207 |
Let's try dividing by 4:
20,240,207 ÷ 4 = 5,060,051.75
If the quotient is a whole number, then 4 and 5,060,051.75 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 | 20,240,207 | |
| -1 | 20,240,207 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 139 | 299 | 487 | 1,807 | 3,197 | 6,331 | 11,201 | 41,561 | 67,693 | 145,613 | 880,009 | 1,556,939 | 20,240,207 |
| -1 | -13 | -23 | -139 | -299 | -487 | -1,807 | -3,197 | -6,331 | -11,201 | -41,561 | -67,693 | -145,613 | -880,009 | -1,556,939 | -20,240,207 |
Here are some more numbers to try:
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