A:
Positive:
1 x 200375637 x 286250913 x 154135131 x 64637391 x 220193217 x 92339403 x 497212821 x 7103
Negative:
-1 x -20037563-7 x -2862509-13 x -1541351-31 x -646373-91 x -220193-217 x -92339-403 x -49721-2821 x -7103
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 20,037,563, 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 | 20,037,563 | |
| -1 | -20,037,563 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,037,563.
Example:
1 x 20,037,563 = 20,037,563
and
-1 x -20,037,563 = 20,037,563
Notice both answers equal 20,037,563
With that explanation out of the way, let's continue. Next, we take the number 20,037,563 and divide it by 2:
20,037,563 ÷ 2 = 10,018,781.5
If the quotient is a whole number, then 2 and 10,018,781.5 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 | 20,037,563 | |
| -1 | -20,037,563 |
Now, we try dividing 20,037,563 by 3:
20,037,563 ÷ 3 = 6,679,187.6667
If the quotient is a whole number, then 3 and 6,679,187.6667 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 | 20,037,563 | |
| -1 | -20,037,563 |
Let's try dividing by 4:
20,037,563 ÷ 4 = 5,009,390.75
If the quotient is a whole number, then 4 and 5,009,390.75 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 | 20,037,563 | |
| -1 | 20,037,563 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 31 | 91 | 217 | 403 | 2,821 | 7,103 | 49,721 | 92,339 | 220,193 | 646,373 | 1,541,351 | 2,862,509 | 20,037,563 |
| -1 | -7 | -13 | -31 | -91 | -217 | -403 | -2,821 | -7,103 | -49,721 | -92,339 | -220,193 | -646,373 | -1,541,351 | -2,862,509 | -20,037,563 |
Here are some more numbers to try:
Try the factor calculator