A:
Positive:
1 x 2023050711 x 183913731 x 65259741 x 493427341 x 59327451 x 448571271 x 159171447 x 13981
Negative:
-1 x -20230507-11 x -1839137-31 x -652597-41 x -493427-341 x -59327-451 x -44857-1271 x -15917-1447 x -13981
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 20,230,507, 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 | 20,230,507 | |
| -1 | -20,230,507 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,230,507.
Example:
1 x 20,230,507 = 20,230,507
and
-1 x -20,230,507 = 20,230,507
Notice both answers equal 20,230,507
With that explanation out of the way, let's continue. Next, we take the number 20,230,507 and divide it by 2:
20,230,507 ÷ 2 = 10,115,253.5
If the quotient is a whole number, then 2 and 10,115,253.5 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 | 20,230,507 | |
| -1 | -20,230,507 |
Now, we try dividing 20,230,507 by 3:
20,230,507 ÷ 3 = 6,743,502.3333
If the quotient is a whole number, then 3 and 6,743,502.3333 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 | 20,230,507 | |
| -1 | -20,230,507 |
Let's try dividing by 4:
20,230,507 ÷ 4 = 5,057,626.75
If the quotient is a whole number, then 4 and 5,057,626.75 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 | 20,230,507 | |
| -1 | 20,230,507 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 41 | 341 | 451 | 1,271 | 1,447 | 13,981 | 15,917 | 44,857 | 59,327 | 493,427 | 652,597 | 1,839,137 | 20,230,507 |
| -1 | -11 | -31 | -41 | -341 | -451 | -1,271 | -1,447 | -13,981 | -15,917 | -44,857 | -59,327 | -493,427 | -652,597 | -1,839,137 | -20,230,507 |
Here are some more numbers to try:
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