A:
Positive:
1 x 2037163711 x 185196713 x 156704943 x 473759143 x 142459473 x 43069559 x 364433313 x 6149
Negative:
-1 x -20371637-11 x -1851967-13 x -1567049-43 x -473759-143 x -142459-473 x -43069-559 x -36443-3313 x -6149
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 20,371,637, 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 | 20,371,637 | |
| -1 | -20,371,637 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,371,637.
Example:
1 x 20,371,637 = 20,371,637
and
-1 x -20,371,637 = 20,371,637
Notice both answers equal 20,371,637
With that explanation out of the way, let's continue. Next, we take the number 20,371,637 and divide it by 2:
20,371,637 ÷ 2 = 10,185,818.5
If the quotient is a whole number, then 2 and 10,185,818.5 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 | 20,371,637 | |
| -1 | -20,371,637 |
Now, we try dividing 20,371,637 by 3:
20,371,637 ÷ 3 = 6,790,545.6667
If the quotient is a whole number, then 3 and 6,790,545.6667 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 | 20,371,637 | |
| -1 | -20,371,637 |
Let's try dividing by 4:
20,371,637 ÷ 4 = 5,092,909.25
If the quotient is a whole number, then 4 and 5,092,909.25 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 | 20,371,637 | |
| -1 | 20,371,637 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 43 | 143 | 473 | 559 | 3,313 | 6,149 | 36,443 | 43,069 | 142,459 | 473,759 | 1,567,049 | 1,851,967 | 20,371,637 |
| -1 | -11 | -13 | -43 | -143 | -473 | -559 | -3,313 | -6,149 | -36,443 | -43,069 | -142,459 | -473,759 | -1,567,049 | -1,851,967 | -20,371,637 |
Here are some more numbers to try:
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